Which of the following has the highest 2βΏα΅ Ionisation energy?
Anonymous Quiz
21%
Li
53%
F
11%
Be
16%
N
Identify the correct statement.
Anonymous Quiz
0%
All ionisation enthalpy are positive.
42%
First electron gain enthalpy of noble gases are highly negative.
33%
First electron gain enthalpy of N is negative.
25%
All of these
For carbon atom, which ionisation energy will be highest?
Anonymous Quiz
25%
1Λ’α΅
20%
2βΏα΅
25%
3Κ³α΅
30%
4α΅Κ°
Who explained the deviation of real
gases from the ideal behaviour through intermolecular
forces ?
gases from the ideal behaviour through intermolecular
forces ?
Anonymous Quiz
40%
Johannes van der Waals
33%
Gay Lussac
13%
Charles
13%
None of these
___ bonds are powerful force in determining the structure and properties of many compounds, for example
proteins and nucleic acids.
proteins and nucleic acids.
Anonymous Quiz
21%
Hydrogen
29%
oxygen
21%
nitrogen
29%
carbon
Bulk properties of matter are the properties associated with
Anonymous Quiz
8%
One atom
31%
One molecule
8%
One ion
54%
Collection of a large numberof atoms, ions or molecules.
Intermolecular forces are the forces of
Anonymous Quiz
24%
attraction only
12%
repulsion only
53%
attraction and repulsion
12%
None of these
London forces were first proposed bty Fritz London who was a
Anonymous Quiz
25%
English physicist
56%
Dutch physicist
19%
German physicist
0%
Greek physicist
Which is the most common example of air pollution that occurs in many cities throughout the world?
Anonymous Quiz
8%
Fog
50%
Smog
25%
Mist
17%
Fumes
Which of the following is not the seen in Classical smog?
Anonymous Quiz
0%
It occurs in cool climate.
18%
It consists of oxidising mixture.
36%
It is also called as reducing smog.
45%
All of these
Which of the following is true for photochemical smog?
Anonymous Quiz
0%
It occurs in warm and dry climate.
50%
It's main component are formed by action of sunlight.
10%
It has high concerntration of oxidising agents.
40%
All of these
The main components of the photochemical smog result from the action of sunlight on which compounds?
Anonymous Quiz
18%
Nitrogen oxides
0%
Unsaturated hydrocarbons
18%
Dioxygen and dinitrogen
64%
Both A and B
Classical smog which of the following chemicals?
Anonymous Quiz
23%
sulphur dioxide
23%
acrolein
23%
formaldehyde
31%
nitrogen oxides
The height of the geostationary satellites above the earthβs surface is approximately 36,000 km.
Anonymous Quiz
79%
True
21%
False
____________ and Boron are same in case when reacted with concentrated nitric acid.
Anonymous Quiz
43%
Oxygen
50%
Aluminium
7%
Hydrogen
0%
No other metal
For a satellite executing an elliptical orbit around a planet, its minimum potential energy is at the perigee.
Anonymous Quiz
64%
True
36%
False
The ionization enthalpy _________ down the group in the family.
Anonymous Quiz
33%
Increases
42%
Decreases
13%
Constant
13%
Is a regular
π1
Colour of important compounds ββ
(1)ZnSO4 (Zinc sulphate ) β Colourless
(2) AgNO3 (Silver nitrate) β Colourless
(3) AgCl (Silver chloride) β White
(4) MgO (Magnesium oxide) β White
(5) Al2 (SO4)3 (Aluminium Sulfate) βWhite an hydrous / colourless liquid
(6) CuSO4 (copper(II) sulfate) β Blue
(7) CuCl2 (Copper(II) chloride) β Bluish Green
(8) FeSO4 (Ferrous sulfate) β Green
(9) BaSO4 (Barium sulfate) β White
(10) CuO (Copper(II) oxide) β Black
(11) PbO (Lead(II) oxide) β Yellow
(12) Pb (NO3)2(Lead nitrate) βWhite
(13) PbSO4 (Lead(II) sulfate) β White
(14) PbI2 (Lead iodide) β Yellow
(15) PbCl2 (Lead(II) chloride) β White
(16) Fe2O3 (iron(III) oxide) β Brown
(17) Ag Br (Silver bromide β Yellow
(18) Ag (silver) β Grey
(19) Zn Cl2 (Zinc chloride) β White
(20) Cu2+ Cupric ion β Blue
(21) Fe2+ Ferrous Ion β Light Green
(22) Fe3+ (Ferric Ion) β Yellowish Brown
(23) Ni2+ (Nickel Ion) β Green
(24) Cr3+ (Chromium Ion) β Green
(24) Mn2+ (Manganese Ion) β Pink
(25) Na2SO4 (Sodium sulfate) β White
(26) K2SO4 (Potassium Sulfate) βWhite
(27) MgCl2 (Magnesium Chloride) β White
(28) KCl (Potassium chloride) β White
(29) BaCl2 (Barium chloride) β White
(30) NaCl (Sodium chloride) β White
(31) AgNO3 (Silver nitrate) β White
(32) CaCO3 (Calcium carbonate) β White
(1)ZnSO4 (Zinc sulphate ) β Colourless
(2) AgNO3 (Silver nitrate) β Colourless
(3) AgCl (Silver chloride) β White
(4) MgO (Magnesium oxide) β White
(5) Al2 (SO4)3 (Aluminium Sulfate) βWhite an hydrous / colourless liquid
(6) CuSO4 (copper(II) sulfate) β Blue
(7) CuCl2 (Copper(II) chloride) β Bluish Green
(8) FeSO4 (Ferrous sulfate) β Green
(9) BaSO4 (Barium sulfate) β White
(10) CuO (Copper(II) oxide) β Black
(11) PbO (Lead(II) oxide) β Yellow
(12) Pb (NO3)2(Lead nitrate) βWhite
(13) PbSO4 (Lead(II) sulfate) β White
(14) PbI2 (Lead iodide) β Yellow
(15) PbCl2 (Lead(II) chloride) β White
(16) Fe2O3 (iron(III) oxide) β Brown
(17) Ag Br (Silver bromide β Yellow
(18) Ag (silver) β Grey
(19) Zn Cl2 (Zinc chloride) β White
(20) Cu2+ Cupric ion β Blue
(21) Fe2+ Ferrous Ion β Light Green
(22) Fe3+ (Ferric Ion) β Yellowish Brown
(23) Ni2+ (Nickel Ion) β Green
(24) Cr3+ (Chromium Ion) β Green
(24) Mn2+ (Manganese Ion) β Pink
(25) Na2SO4 (Sodium sulfate) β White
(26) K2SO4 (Potassium Sulfate) βWhite
(27) MgCl2 (Magnesium Chloride) β White
(28) KCl (Potassium chloride) β White
(29) BaCl2 (Barium chloride) β White
(30) NaCl (Sodium chloride) β White
(31) AgNO3 (Silver nitrate) β White
(32) CaCO3 (Calcium carbonate) β White
π1
The three isotopes of hydrogen differs in number of
Anonymous Quiz
33%
Protons
7%
Electrons
47%
Neutrons
13%
Neutrinos