Chemistry · Question 1
The difference in the E.N values of the bonded atoms b/w two atoms is an index to______of covalent bond
- polar nature
- non-polar nature
- strength
- nature
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Correct answer: A
polar nature
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Chemistry · Question 2
The distillation carried out under reduced pressure is called
- Steam distillation
- Simple distillation
- Fractional distillation
- Vacuum distillation
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Correct answer: D
Vacuum distillation
Chemistry · Question 3
The number of reacting molecules which changes their concentration in chemical change is called
- Extent of a Reaction
- Order of a Reaction
- Specific rate of a reaction
- Enthalpy of reaction
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Correct answer: B
Order of a Reaction
Chemistry · Question 4
Which of the following method is used to prepare Ethylene glycol from ethene?
- Dehydration
- Hydroxylation
- Hydration
- Luca's test
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Correct answer: B
Hydroxylation
Chemistry · Question 5
Which of the following is a poor leaving group in nucleophilic substitution reactions?
- C1-
- Br-
- I-
- -OH
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Correct answer: D
-OH
Chemistry · Question 6
The reactions of carboxylic acits-which involve H atom removal of OH group from___________ as major products in all reactions?
- Esters
- Nitriles
- Ketones
- Salts
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Correct answer: D
Salts
Chemistry · Question 7
18g of water contains_______________ atoms of hydrogen
- 6.022 X 1023
- 3 X 6.022 X 1023
- 2 X 6.022 X 1023
- 4 X 6 22 X 1023
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Correct answer: C
2 X 6.022 X 1023
Chemistry · Question 8
In one second if the concentration changes from 0.1 to 0.25 then the rate will be
- 0.02 Moles/dms3s-1
- 0.03 Moles/dm3s-1
- 0.15 Moles/dm3s-1
- 0.11 Moles/dm3s-1
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Correct answer: C
0.15 Moles/dm3s-1
Chemistry · Question 9
Which one of the following is the example of polar molecular solids?
- Ice
- lodine
- Copper
- Phosphorous
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Correct answer: A
Ice
Chemistry · Question 10
All of the following compounds are organic except:
- KOCN
- C6H5OH
- CH3COCH3
- CH3OH
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Correct answer: A
KOCN