In pressure cooker food is made faster because
In pressure cooker food is made faster because
Options
(a) boiling point of water is lowered (b) boiling point of water is increased (c) heat is concentrated on food only (d) heat spreads […]
Chemistry
Which of the following is not true
Which of the following is not true
Options
(a) Some disinfectants can be used as antiseptics (b) Sulphadiazine is a synthetic antibacterial drug (c) Aspirin is analgesic as well as antipyretic (d) Diazepam […]
Which one of the following has maximum laevorotatory nature
Which one of the following has maximum laevorotatory nature
Options
(a) D-glucose (b) D-fructose (c) Sucrose (d) Invert sugar
Correct Answer:
D-fructose
Explanation:
When fructose solution is placed in a polariser it rotates the plane polarized […]
Which of the following hormones contains iodine
Which of the following hormones contains iodine
Options
(a) Testosterone (b) Adrenaline (c) Thyroxine (d) Insulin
Correct Answer:
Thyroxine
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
CH₃CH₂CONH₂ on treatment with P₂O₅ yields
CH₃CH₂CONH₂ on treatment with P₂O₅ yields
Options
(a) Acetone (b) carboxylic acid (c) nitrile (d) isonitrile
Correct Answer:
nitrile
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Nitrobenzene gives N-phenylhydroxylamine by
Nitrobenzene gives N-phenylhydroxylamine by
Options
(a) Sn/HCl (b) H₂/Pd-C (c) Zn/NaOH (d) Zn/NH₄Cl
Correct Answer:
Zn/NH₄Cl
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
Clemmensen reduction of a keton is carried out in the presence of
Clemmensen reduction of a keton is carried out in the presence of which of the following
Options
(a) Glycol with KOH (b) Zn-Hg with HCl (c) LiAlH₄ (d) H₂ and pt as catalyst
CO₂ is liberated on adding sodium carbonate to a carboxylic acid.The carbon
CO₂ is liberated on adding sodium carbonate to a carboxylic acid.The carbon of CO₂ comes from
Options
(a) carboxylic group (b) carbonate (c) alkyl group (d) methyl
Correct Answer:
carbonate
Explanation:
No explanation […]
Primary alcohols can be prepared by the reaction of RMgx with
Primary alcohols can be prepared by the reaction of RMgx with
Options
(a) C₂H₅CHO (b) CH₃CHO (c) HCHO (d) C₃H₇CHO
Correct Answer:
C₃H₇CHO
Explanation:
No explanation available. Be the first to write the […]
Among the following , the one which reacts most readily with ethanol is
Among the following , the one which reacts most readily with ethanol is
Options
(a) p-nitrobenzyl bromide (b) p-chlorobenzyl bromide (c) p-methoxybenzyl bromide (d) p-methylbenzyl bromide
Correct Answer:
p-methoxybenzyl bromide
Explanation: […]