In the chemical reaction, Cl2 + H2S → 2HCl + S, the oxidation number of sulphur changes from
Anonymous Poll
12%
0 to 2
23%
2 to 0
57%
–2 to 0
7%
–2 to –1
🏆9👎1🔥1
Hydrogen can be prepared by
Anonymous Poll
27%
Electrolysis of acidified water
7%
Bosch's process
5%
Lane's process
62%
All of theses
🏆11👍3
When vapour condenses into liquid
Anonymous Poll
18%
It absorbs heat
33%
It liberates heat
20%
Its temperature increases
29%
Its temperature decreases
🏆10👍3
CENTER OF MASS AND COLLISION in 1 Shot : All Concepts, Tricks & PYQs | NEET Crash Course | UMMEED
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23:53 Centre of mass
31:44 Centre of mass of discrete system
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23:53 Centre of mass
31:44 Centre of mass of discrete system
2:26:43…
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02:33 Chromatin Vs chromosome
15:47 Cell cycle
43:37 Interphase…
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02:33 Chromatin Vs chromosome
15:47 Cell cycle
43:37 Interphase…
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The major product formed in dehydrohalogenation reaction of 2-Bromo pentane is Pent-2-ene. This product formation is based on?
Anonymous Poll
12%
Huckel's Rule
24%
Hund's Rule
51%
Saytzeff's Rule
12%
Hofmann Rule
👏6
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
Anonymous Poll
28%
Electrolysis
38%
Distillation
20%
Chromatography
14%
Zone refining
SYSTEM OF PARTICLE & ROTATIONAL MOTION in 1 Shot : All Concept & PYQ | NEET Crash Course | UMMEED
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08:10 Rigid bodies
16:31 Axis of rotation
24:33 Moment of inertia…
👍1
Which of the following algae contains mannitol as reserve food material?
Anonymous Poll
41%
Ectocarpus
23%
Volvox
27%
Gracilaria
9%
Ulothrix
👍2🥰2
The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at G, phase is 8, what would be the number of chromosomes after S phase?
Anonymous Poll
42%
8
46%
16
8%
4
4%
32
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09:27 Equilibrium
38:17 Types of equilibrium
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Timestamps-
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1:04:15 Characteristics…
The incorrect statement regarding enzymes is
Anonymous Poll
12%
Enzymes are biocatalysts.
33%
Like chemical catalysts enzymes reduce the activation energy of bio processes.
46%
Enzymes are polysaccharides.
9%
Enzymes are very specific for a particular reaction and substrate.
👍1
Gadolinium has a low value of third ionisation enthalpy because of
Anonymous Poll
30%
high exchange enthalpy
34%
small size
27%
high electronegativity
9%
high basic character
👏2
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TRANSPORT IN PLANTS in 1 Shot : All Concepts, Tricks & PYQs | NEET Crash Course | UMMEED
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17:21 Materials to be translocated
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17:21 Materials to be translocated
28:05…
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43:32…
👍1
By which method was a new breed 'Hisardale' of sheep formed by using Bikaneri ewes and Marino rams?
Anonymous Poll
12%
Out crossing
63%
Cross breeding
20%
Mutational breeding
6%
Inbreeding
👍5❤1