When HBr adds on hex-1-ene in the presence of benzoyl peroxide, the product is
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6%
2-bromohexane
14%
2,3-dibromohexane
9%
1,2-dibromohexane
70%
1-bromohexane
The addition of HBr to 2-pentene gives
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24%
2-bromopentane only
17%
3-bromopentane only
49%
2-bromopentane and 3-bromopentane
10%
1-bromopentane and 3-bromopentane
Baeyer's reagent is
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74%
Alkaline permanganate solution
17%
Acidified permanganate solution
4%
Neutral permanganate solution
5%
Aqueous bromine solution
Dermis of skin has:
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18%
Loose connective tissue
13%
Dense regular connective tissue
45%
Dense irregular connective tissue
24%
Epithelial tissue
Mast cells are associated with:
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13%
Exocrine glands
72%
Areolar connective tissue
12%
Endocrine glands
3%
Neural tissue
Beta and alpha cells secrete the following hormones in respective order:
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73%
Insulin and glucagon
23%
Glucagon and insulin
3%
Testosterone and progesterone
0%
None of the above
Receptors for protein hormones are located:
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7%
In cytoplasm
15%
In nucleus
68%
In cell membrane
10%
On endoplasmic reticulum
Tendons and ligaments are the example of :
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7%
Areolar connective tissue
6%
Adipose tissue
83%
Dense regular connective tissue
5%
Loose connective tissue
The compound that is most reactive towards electrophilic nitration is
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49%
Toluene
13%
Benzene
13%
Benzoic acid
24%
Nitrobenzene
Which of the following acids adds to propene in the presence of peroxide to give antiMarkownikoff's product
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3%
HF
8%
HCl
86%
HBr
3%
HI
Reaction of t-butyl bromide with sodium methoxide produces
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4%
Isobutane
47%
Isobutylene
19%
Sodium t-butoxide
30%
t-butyl methyl ether
Which one of the following alkyl halides has the lowest boiling point
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9%
n-butyl chloride
12%
Iso-butyl chloride
68%
Tert-butyl chloride
11%
n-pentyl chloride
Iodoform heated with Ag powder to form
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51%
Acetylene
25%
Ethylene
19%
Methane
5%
Ethane
The meristems which occur at the tips of roots and shoots and produce primary tissues are called :
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80%
Apical meristems
6%
Intercalary meristems
3%
Lateral meristems
11%
All of the above
Initiation of lateral roots and vascular cambium during the secondary growth takes place from:
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13%
Endodermis
65%
Pericycle
17%
Cortex
6%
Epidermis
The facial region consist of ______ skeletal elements forming front part of the skull.
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2%
6
22%
8
70%
14
6%
22
Which of the following statement is correct?
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6%
Visceral muscles are voluntary in nature.
6%
Skeletal muscles are also known as smooth muscles.
74%
Skeletal muscles are voluntary in nature.
13%
All the above
Vinyl chloride reacts with HCl to form
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25%
1, 1- dichloro ethane
45%
1,2-dichloro ethane
10%
Tetrachloro ethylene
20%
Mixture of 1, 2 and 1, 1-dichloro ethane
Use of chlorofluoro carbons is not encouraged because
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11%
They are harmful to the eyes of people that use it
16%
They damage the refrigerators and air conditioners
57%
They eat away the ozone in the atmosphere
17%
They destroy the oxygen layer