Heating a mixture of sodium benzoate and soda lime gives
Heating a mixture of sodium benzoate and soda lime gives
Options
(a) toluene (b) aniline (c) benzene (d) none of these
Correct Answer:
benzene
Explanation:
C₆H₅ – COONa + NaOH → C₆H₆ + […]
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If the gas at constant temperature and pressure expands, then its
If the gas at constant temperature and pressure expands, then its
Options
(a) internal energy increases (b) internal energy remains the same (c) internal energy decreases (d) entropy increases and then decreases
Correct […]
A certain mass of gas occupies a volume of 300 c.c. at 27⁰C and 620 mm pressure
A certain mass of gas occupies a volume of 300 c.c. at 27⁰C and 620 mm pressure.The volume of this gas at 47⁰C and 640 mm pressure will be
Options
(a) 400 c.c. […]
If HNO₃ changes into N₂O, the oxidation number is changed by
If HNO₃ changes into N₂O, the oxidation number is changed by
Options
(a) 0 (b) 6 (c) 2 (d) 4
Correct Answer:
4
Explanation:
No explanation available. Be the first to write the […]
Which cranial nerve in mammals has got maximum branches?
Which cranial nerve in mammals has got maximum branches?
Options
(a) vagus nerves (b) facial nerves (c) auditory nerves (d) trigeminal nerves
Correct Answer:
vagus nerves
Explanation:
No explanation available. Be the first […]
Which of the following is a chemical transmitter for neuro impulse conduction?
Which of the following is a chemical transmitter for neuro impulse conduction?
Options
(a) glycine (b) adrenalin (c) GABA (d) acetylcholine
Correct Answer:
acetylcholine
Explanation:
No explanation available. Be the first to write […]
Nitrobenzene combines with hydrogen in the presence of platinum to yield
Nitrobenzene combines with hydrogen in the presence of platinum to yield
Options
(a) aniline (b) benzene (c) toluene (d) azobenzene
Correct Answer:
aniline
Explanation:
C₆H₅-NO₂ + 3H₂ → C₆H₅-NH₂ + 2H₂O. Nitrobenzene on […]
Which of the following compounds is the strongest base
Which of the following compounds is the strongest base
Options
(a) Methylamine (b) Aniline (c) Ammonia (d) N-methyl aniline
Correct Answer:
Methylamine
Explanation:
Due to + I-effect of -CH₃ group, in methyl amine […]
Terylene is used for making
Terylene is used for making
Options
(a) sails (b) fabrics (c) seat belts (d) all of these
Correct Answer:
all of these
Explanation:
No explanation available. Be the first to write the explanation […]
Isoprene is used for the preparation of
Isoprene is used for the preparation of
Options
(a) teflon (b) rubber (c) nylon 66 (d) nylon
Correct Answer:
rubber
Explanation:
No explanation available. Be the first to write the explanation for this […]