*DT BREAKFAST PUTME QUESTIONS (Chemistry)*🔥🤝✍👔


1. When a reaction is endothermic


A) Enthalpy change, ΔH is negative
B) Heat content of a product is less than the heat content of a reactant
C) Heat content of reactants is less than the heat content of products
D) The reaction is non-spontaneous

*The correct answer is C.*✍
_Endothermic reactions need heat, so, after the reaction has taken place, the solution will take in or absorb all available heat, thereby making the heat content of the product much more than that of the reactant._


2. An example of an acid salt is

A) CH3COOONa
B) Mg(OH)Cl
C) NaHSO4
D) (NH4)2SO4

*The correct answer is C.*✍
_Acidic salts are a class of salts that produce an acidic solution after being dissolved in a solvent. Its formation as a substance has a greater electrical conductivity than that of the pure solvent. An acidic solution formed by acid salt is made during partial neutralization of diprotic or polyprotic acids. A half-neutralization occurs due to the remaining of replaceable hydrogen atoms from the partial dissociation of weak acids that have not been reacted with hydroxide ions (OH−) to create water molecules. Acid salt is an ionic compound consisted of an anion, contributed from a weak parent acid, and a cation, contributed from a strong parent base._
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DT DINNER 😜🍽️ ENGLISH LANGUAGE
Question Tags 🎯
1. There is a Cinema near the Station,___
A. isn't it? B. Isn't there✅ C. Aren't there? D. Is there?
2. Sameer played cricket yesterday,___ A. don't he? B. doesn't he? C. Didn't he?✅ D. Isn't he?
3. He could have bought a new pen,__ A. can't he? B. didn't he? C. Couldn't he ?✅ D. Didn't he?
4. John and Mary cleaned your car, __ A. Didn't they?✅ B. Do they? C. Don't they? D. Haven't they?
5. Let's have a cup of coffee, _ A.will we? B. Should we? C. Shall we? ✅D. Could we? .
6. I don't think he can do it,___ A. Can't he? B. Isn't it? C. Don't I ? D. Can he?✅
7. If she had known,she wouldn't have come__ A. Would she?✅ B. Wasn't it? C. Wouldn't she? D. Should she?
8. let's have a meal,_ A. Should we? B. Can we? C. Shall we? ✅D. May we
9. Those are your friends,_ A. Isn't it? B. Isn't they? C. Haven't they? D. Aren't they?✅
10. There weren't a lot of students present,__ A. Are they? B. Were there? ✅ C. Is there? C. Will there ?
11. She hardly attends class,_A. Isn't it? B. Will she? C. Does she?✅ D. Doesn't she
12. I am eating,_ A. Aren't I ?✅ B. Amn't I C. Am I? D. Will I.
.
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DT DINNER ( ENGLISH LANGUAGE )
😜🍽️🔥⤵️
Questions on Idioms and Interpretation.
Consider the following
1 At the sight of the ghastly accident the poor woman's" hair stood on end "
A the woman's hair became straight
B the wind blew her hair upwards 
C the woman was unmoved 
D the disarranged her hair 
E ✅the woaman was frightened


2 The story has to be taken "with a grain of salt ". This means that ……….
A you need some salt to listen to the story 
B there is no salt in the story 
C✅ the story is questionable
D the story is true 
E you have too much salt in the story 

3 It's usually hard to change the course of an action when one "crosses the rubicon". This expression as used in the sentence means to …………
A pass through a place called Rubicon
B cross a river called Rubicon 
C cross a bridge called Rubicon
D pass a special test 
E✅ be irrevocably committed .

4 The salesman tried "to pull the wool over my eyes" . This implies that the salesman tried to …………
A force me to buy his goods 
B offer me cotton wool 
C make me buy his wool 
D ✅dupe me 
E cover my eyes with wool 
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🔥🔥🔥🔥🔥🔥🔥 FOR 2024 JAMB CANDIDATES ONLY
Cold tea😁

_*THE SHAPE OF A GRAPHITE CRYSTAL IS......*_

A. Pentagonal
B. Hexagonal
C. Square pyramidal
D. None

*Correct Answer: B✅*

Explanation😁
The carbon atoms in the graphite structure are sp2 hybridised and are directed in the same plane, thus forming hexagonal rings. The rings have many layers of particles. Graphite is said to exhibit low electrical conductivity with a low density of about 2.26 g/cm3.

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*DID YOU ATTEND THE FEBRUARY EDITION OF OUR JAMB COACHING OR YOU WEREN'T ABLE TO JOIN US*

Now, we present to you the march edition🔥, All those that tasted the February edition are rushing to register for this edition, you can't afford to miss out

*Features*
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-Treating at least 200 UTME questions daily (over 8,000 pqs in total)
-4hrs lecture daily
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-covering the UTME syllabus in detailed within two months
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*DT BREAKFAST UTME QUESTIONS (English)*🤝✍🔥


1. From the alternative provided in the question below select the one which is most appropriately completes the sentence:

Had he known that it would rain, he ____ his umbrella with him.

A) would have taking
B) was going to take
C) would be taking
D) would have taken
E) would take

*The correct answer is D*✍️
_After have, has and had, the verb that will follows must be past participle._

2. From the alternative provided in the question below select the one which is most appropriately completes the sentence:

Harry was taking his dog for a walk when the dog suddenly ___ from its chain and escaped

A) broke through
B) broke lose
C) broke even
D) broke loose
E) broke away

*The correct answer is D.*✍
_Loose is different from lose. Loose in this sense mean to break free from something, then lose means to have lost something, but here the dog loosed from the chain, i.e. to break free from the chain._

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DT DINNER BIOLOGY QUESTIONS
😜⤵️💫🎉
11. The autonomic nervous system consists of neurons that control the
A. voluntary muscles
B. heartbeat 💎
C. tongue
D. hands. (2012:Q27)

12. The transmission of impulses along a nerve fibre is characterised by
A. hormonal and temperature changes
B. electrical and ionic changes 💎
C. Hormonal changes
D. Electrostatic changes. (2008:Q28)

13. In a mammal, stimulus is transferred from the receptor muscles to the central nervous system through the
A. motor neurons
B. Effector muscles
C. Dendrites
D. Sensory neurons 💎
E. Synapse (1985:Q40)

14. The part of the brain that controls heart beat and breathing is the
A. olfactory lobe
B. cerebellum
C. cerebral hemisphere
D. medulla oblongata💎. (1994:Q29)

15. What part of the central nervous system is concern with answering of examination question?
A. Cerebrum 💎
B. Cerebellum
C. Medulla oblongata
D. Spinal cord. (1988:Q35)

16. The region that controls most of the unconcious processes of a mammalian body is the
A. cerebellum
B. cerebrum
C. spinal cord 💎
D. medulla oblongata. (1989:Q35)

17. The two key cations involved in the action potential of nervous transmissions are
A. Na+ and Fe2+
B. Mg2+ and K+
C. Na+ and K+ 💎
D. Fe2+ and Mg2+. (2004:Q31)

18. Neurons that receive stimuli from the body or internal organs are called
A. sensory neurons 💎
B. efferent neurone
C. motor neurons
D. relay neurons. (1992:Q31)

19. The part of the brain responsible for peristalsis is the
A. olfactory lobe
B. medulla oblongata 💎
C. hypothalamus
D. thalamus. (2014:Q25)

20. In the mammal, the autonomic nervous system consists of
A. sympathetic and parasympathetic systems💎.
B. brain and spinal nerves
C. brain and cranial nerves
D. spinal cord and spinal nerves.
✍️💯⤵️
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DT BREAKFAST PHYSICS QUESTIONS
⤵️😜✅
51) Find the work done in moving a 2C charge between two points X and Y in an electric field if the potential difference is 100 volt.
A. 50J
B. 100J
C. 200J✅
D. 400J
Answer
W = qV
= 2×100 = 200J

52) Two parallel plates at a distance of 8.0 x 10-³m apart are maintained at a p.d of 600 volts with the negative plate earthed. What is the electric field strength?
A. 4.8 V/m
B. 75.0V/m
C. 4800.0V/m
D. 75000.0V/m✅
Answer
E = v/d = 600/8×10-³
= 75000v/m

53) Calculate the electric field intensity between two plates of potential difference 6.5V when separated by a distance of 35cm.
A. 18.57NC⁻¹✅
B. 53.06NC⁻¹
C. 2.28NC⁻¹
D. 0.80NC⁻¹
Answer
E = v/d = 6.5/0.35
= 18.57N/c

54) Calculate the force acting on an electron of charge 1.6 x 10-¹⁹C placed in an electric field of intensity 10⁸Vm-¹
A. 1.6 x 10-11N✅
B. 1.6 x 10-14N
C. 1.6 x 10-16N
D. 1.0 x 10-16N
Answer
Use F = qE

55)What is the relative permitivity of a capacitor if its capacitance with a medium as dielectric is 16 farads and its capacitance with vacuum as dielectric is 2 farads?
A. 0
B. 1/2
C. 2
D. 8✅
E. 32

56) The purpose of a dielectric material in a parallel plate capacitor is to?
A. Increase its capacitance
B. Decrease its capacitance
C. Insulate the plate from each other✅
D. Increase the magnetic field between the plates
Answer
The dielectric is inserted between the plates of a capacitor in order to insulate the plates from one another.

57) A capacitor 8F is charged to a potential difference of 100V. The energy stored by the capacitor is?( Give only the base part of your answer)
A. 1.0J
B. 8.0J
C. 1.25J
D. 4.0J✅

58) A parallel plate capacitor of area 10cm² in vacuum has a capacitance of 10-²F. What is the distance between the plates?(ε₀ = 9 x 10-12fm)

A. 9 x 10-¹³m✅
B. 9 x 10-⁷m
C. 9 x 10-³m
D. 9 x 10⁷m

59) A capacitor of 10µF is connected across a cell of 12 volts. Calculate the energy stored in the capacitor
A. 7.2 x 10-⁴J✅
B. 1.4 x 10-³J
C. 1.4 x 10-³J
D. 1.2 x 10-²J
Answer
E = ½Cv²
= ½×10×10-⁶×12²
= 7.2×10-⁴J

60) Which of the following is true?
A. The force of attraction between charges in a vacuum is less than that in a medium
B. The force of attraction between charges in a vacuum is negligible
C. The force of attraction between charges in a vacuum is equal to that in a medium
D. The force of attraction between charges in a vacuum is greater than that in a medium✅

61) The absolute refractive indices of glass and water are 3/2 and 4/3 respectively. The refractive index at the interface when a ray travels from water to glass is?
A. 1/2
B. 8/9
C. 17/12
D. 9/8✅
E. 2
Answer
The refractive index at the water to glass interface becomes 3/2 × (1÷4/3)
= 3/2 × 3/4
= 9/8

62) Capacitors are used in the induction coil to?
A. Control circuits
B. Prevent distortion of electric fields
C. Prevent electric sparks✅
D. Dissipate energy
Answer
Capacitors are used to prevent electric Sparks in induction coils.

63) When a piece of rectangular glass block is inserted between two parallel capacitor,at constant plate area and distance of separation, the capacitance of the capacitor will?
A. Increase✅
B. Decrease
C. Decrease then increase
D. Remain constant

64) Which of the following is true?
A. The charge in a series arrangement of capacitors is constant✅
B. The charge in a parallel arrangement of capacitors is constant
C. The voltage in a series arrangement of capacitors is constant
D. None of the above

65) Two charges 30C and 10C are separated by a distance of 20cm. Compute the force on a 5×10-⁶C charge placed midway between them.
A)9×10⁷N✅
B)5.4×10⁷N
C)3.2×10⁷N
D)2.3×10⁷N
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DT BREAKFAST PHYSICS QUESTIONS
✅💯⤵️🤪
The physical quantity that has the same dimensions as impulse is A. Energy 8. Momentum✅ C. Surface tension D. Pressure.
From Newton's Second Law of motion, change in momentum is directly proportional to impulse. For this reason, option B is correct ✅

22) The inner diameter of a small test tube can be measured accurately using a A. Micrometer screw gauge B. Pair of dividers C. Metre rule D. Pair of vernier calipers. ✅


23) Which of the following consists entirely of vector quantities? A. Velocity, magnetic flux and reaction ✅B.Tension, magnetic lux and mass C. Displacement, impulse and power D. Work, pressure and moment
Velocity, magnetic flux and reaction forces are all vectors ✅

24) Which of the following is a fundamental unit? A. Newton
B. Watt C. Joule D. Second✅

There are 7 fundamental units, part of them is seconds, the unit of time

25) What is the least possible error in using rule graduated in centimeters? A. 0.1cm ✅B. 0.5cm C. 1.0cm D. 2.0cm

26)Which of the following quantities has the same unit as the watt? A. Force x time B. Force x distance C. Force × acceleration D. Force x velocity ✅

27) The external and internal diameters of a tube are measured as (322)mm and (211) mm respectively. Determine the percentage error in the thickness of the tube. A. 27% B. 14% C. 9%✅ D. 3%


28) Which of the following has a different dimension from the others?
A) Stress×Strain
B) Stress/Strain
C) Potential energy per unit volume
D) Torque ✅
Explanation
For option A and B, Strain has NO UNIT. So Stress × Strain which is option A and Stress/Strain which is option B would give the same results which is N/m².
For option C, potential energy per unit volume is given as:
mgh/v
Simplifying this further, using the respective units, we have: kg×ms-²×m/m³ = kgs-²/m
Only option D, which is torque is different from the others. It's unit is Newton meters.

29) Which of the following units should be used for capacitance of a Capacitor?
A) kgm-²s²C²
B) kg-¹m-²s²C²✅
C) kg-¹m-²sC²
D) kg-¹m-²s²C

30) Which of these is used to measure luminous intensity?
A) Photocell
B) Photometer✅
C) Photon
D) Photoplate
Explanation
A photometer is used to measure luminous intensity
A photocell is used to generate electricity using the principle of photoelectric effect
A photon is the energy possessed by light.
So option B is correct ✅
5) If x = at+bt², where x is the distance travelled by the body in kilometers, and t is the time in seconds, then the unit of b is?
A) km/s
B) km-¹s
C) km/s²✌️
D) km-²s
Explanation
x = at + bt²
Basically, when we have questions like this, we focus only the part where we can see the constant we're considering. In this case, that constant is b, so we have
x = bt²
b = x/t²
We're told that x is in km and t is in s, so
b = km/s²
C is correct ✅

32) A force F is given by F = at+bt², what is the dimension of b?
A) MLT⁻³
B) MLT⁻⁴✅
C) M²LT
D) ML⁻³T
Explanation
Since we're considering the dimension of the constant b, we ignore at, so we have F = bt²
b = Ft²
The dimension of F is MLT-², the dimension of t is T
So, b = MLT-²/T²
b = MLT-⁴
B is correct ✅
.
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DT BREAKFAST (ENGLISH QUESTION)
😋⤵️❤️🔥
1. Life is not a bed roses

A. with
B. of✅
C. for
D. off

2. My grandfather will come here __ a week

A. with
B. before
C. at
D. within✅

3. The work was completed ____ sunset

A. for
B. in
C. at✅
D. about

4. We are pleased ____ your visit

A. with✅
B. at
C. by
D. on

5. I shall meet you ___ 6 o'clock

A. by
B. at✅
C. in
D. during
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DT BREAKFAST (BIOLOGY DRILL)💫⤵️❤️🔥
♻️ How leaves are adapted to carryout photosynthesis effectively

📌 Stomata for gaseous exchange (largely found on the underside of the leaves, to minimize water loss through transpiration)

📌 Thin to allow gases to reach mesophyll cells quickly.

📌 Moist to allow gases to dissolve

📌 Waterproof cuticle to reduce water loss through transpiration

📌 Xylem to bring water and minerals up the stem of plant

📌 Phloem to carry away the product of photosynthesis from the leaves to other parts of the plant

📌 Large surface area of the leaf blade (lamina) allows a large amount of chloroplast to be exposed to sunlight

📌 Palisade mesophyll near top of the leaf to trap maximum sunlight

📌 Spongy mesophyll aids gaseous exchange

📌 The leaf stalk usually holds the lamina in the best possible position for the sun's rays to fall on it at right angles throughout the day

📌 Leaves arranged in space so as not to shade each other.
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DT BREAKFAST PHYSICS 📚📖💥

1. The expression MᵃLᵇTᶜ when a = 1, b = 2 and c = -2 is the dimension of
A. Force
B. Energy ✅
C. Acceleration
D. Power

2. What is the dimension of resistance?
A. ML²T-³I²
B. MLT-³I-²
C. ML²T-³I-²✅
D. ML²T-³I-¹
E. None of the above

3. The unit "cycles per second" is the same as
A. watt
B. metres per second
C. hertz ✅
D. radians per second

4. Which of the following quantities has the same unit as the kilowatt•hour?
A. Force x acceleration ✅
B. Force x velocity
C. Force x distance
D. Force x time

5. Ampere hour is a unit of?
A. Quantity of electricity
B. Strength of electric current✅
C. Power
D. Energy
.
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DT BREAKFAST (CHEMISTRY QUESTION)💫⤵️💦📝
19. Which of the following turns like water milky

A. CO
B. NO2
C. CO2✅
D. N2O

20. The constituents of air necessary for the rusting process are.

A. O2 & H2O.✅
B. Ar & CO2
C. CO2 & H2O
D. O2 & CO2

21. Ca(OH)2 + 2NH4Cl → CaCl2 + 2H2O + X

In the equation above, X is

A. NO2
B. NH3 ✅
C. N2O
D. N

22. Mike oxidation of Propan-1-ol will produce

A. Propanone
B. Propanol✅
C. Propanoic acid
D. Propane

23. Sodium reacts with several elements, that is, it is highly reactive hence, it is stored under

A. Water
B. Mercury
C. Phenol
D. Paraffin ✅

24. Fats and oil are classified as

A. Hydrocarbons
B. Carbohydrates
C. Alkanones
D. Alkanoates ✅

25. Which of these increases from left to right of the period but decreases down the group of the periodic table
I. Ionization energy
II. Electron affinity
III. Electropositivity
IV. Atomic radius

A. I and II only ✅
B. I and III only
C. II and IV only
D. III and IV
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🔥 36 days to go, Are you ready for 2024 JAMB??

-Don't miss DT ongoing March UTME tutorial for any reason
- We are set to teach the whole JAMB syllabus in March
- you will also have access to our past lectures and mocks worth 15k+ once you enrol for march.
Check the flyer for other details.
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See other great things you are missing below

-Access to past lectures and mocks worth 15k+
-Treating at least 200 UTME questions daily (over 8,000 pqs in total)
- 4hrs lecture daily
- 10 hours+ DSC/brainstorming with Dr. Joe
-covering the UTME syllabus in detailed within two months
-Access to 100+ JAMB recommended texts and past questions
-Over #100,000 cash prize is available to be won
- standard mock weekly with prizes available to be won
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And lots more....

Don't joke with this great opportunity

_*DT BREAKFAST ENGLISH LANGUAGE QUESTION*_ ⤵️🔥🔥⤵️

_In the question below, fill the gap with the most appropriate option:_

*I am disappointed ____ you for your despicable attitude.*

A. In
B. At
C. By
D. With

_*EXPLANATION:*_

*Correct Option:* A ✅

*💡 When speaking of someone's character, performance, etc, use "in."*

E.g

⏩ I am disappointed in you, son; I thought you could get better grades.

⏩ I am disappointed in you; I never expected you to lie to me.

*💡When speaking of an event, use "by."*

E.g

⏩ I was disappointed by what happened to you.

⏩ I was disappointed by my poor performance in the race.

⏩ I was disappointed by the concert; it was boring.

*💡When speaking about inanimate object or a situation, use "with."*

⏩ I am disappointed with my new clothes - the shirt shrank when I washed it and the shoes are uncomfortable.

⏩ He was disappointed with his purchases, so he returned everything.

*💡Disappointed at" is less common and generally not used in standard English for expressing disappointment.*

_Since "despicable attitude" speaks about someone's character, "in" will be the appropriate option._💫📍
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DT BREAKFAST (PHYSICS QUESTION)📝🔥🤍💫⤵️
Calculate the absolute pressure at the bottom of a lake at a depth of 32.8 m. Assume the density of the water is 1 x 10^3 kgm-3 and the air above is at a pressure of 101.3 kPa.

[Take g = 9.8 ms-2]
A. 422.7
B. 220.14
C. 464.53
D. 321.74

Explanation
h=32·8m, p= 1×103kgm−3


g=9·8 ms−2
, Pa
=101·3KPa

PT
= ?

P=hpg

⇒32⋅8×1×103×9⋅8
=321440 Pa


⇒321·44KPa

⇒ PT
=321.44+101.3

;PT
=422·7KPa
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DT DINNER 🥞 QUESTIONS (Maths)👇🕊️😋✨


1. Expand the expression:
(x²-2x-3)(x²+x+1)

A. x⁴-4x²-5x-3
B. -x³-4x² +5x-3
C. x⁴-x³-4x²-5x-3
D. x⁴-4x²-5x-3

Correct Answer: C ✍
(x²-2x-3)(x²+x+1)
= x²(x²+x+1) - 2x(x²+x+1) -3(x²+x+1)
= x⁴ + x³ + x² - 2x³ - 2x² - 2x - 3x² - 3x - 3
= x⁴ - x³ - 4x² - 5x -3 🤝

2. The Interior angles of a pentagon are: 180°, 118°, 80°, 78°, and x°. The value of x is?

A. 75°
B. 108°
C. 120°
D. 84°

Correct Answer: D ✍
no. of sides of polygon = 5
Sum of int. <s of a polygon = (n -2)180°
For a pentagon, (5-2)180° = 540°
x = 540° - (180° + 118° + 80° + 78°)
x = 84°
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