Which of the following group activates the benzene ring most towards electrophilic substitution
Options
(a) –CHO (b) –NR₂ (c) –NHCOCH₃ (d) –NO₂
Correct Answer:
–NR₂
Explanation:
No explanation available. Be the first to […]
Which of the suggested tests can be used to differentiate the given compounds
Options
(a) 1⁰ and 2⁰ amine(carbylamine test) (b) CH₃CHO and CH₃CH₂CHO(Tollen’s test) (c) CH₃OH and CH₃CH₂OH(Lucas test) (d) CH₃COCH₃ and […]
Bleaching powder is prepared from the reaction of
Options
(a) slacked lime and chlorine (b) quicklime and chlorine (c) burnt lime and chlorine (d) calcium and chlorine
Correct Answer:
slacked lime and chlorine
Radius ratio of an ionic compound is 0.93. The structure of the above ionic compound is of
Options
(a) NaCl type (b) CsCl type (c) ZnS type (d) none of these
Correct Answer: […]
The end of DNA fragments are sticky due to
Options
(a) Unpaired bases (b) Free methylation (c) Endonuclease (d) Calcium ions
Correct Answer:
Unpaired bases
Explanation:
No explanation available. Be the first to […]
Chipko movement is connected with
Options
(a) Conservation of natural resources (b) Plant/forest conservation (c) Plant breeding (d) Project tiger
Correct Answer:
Plant/forest conservation
Explanation:
No explanation available. Be the first to write […]
A technique of deliberate manipulation of genes/transfer of gene to a different organism is
Options
(a) Gene therapy (b) Tissue culture (c) Hybridoma technology (d) Genetic engineering
Correct Answer:
Genetic engineering
Explanation:
No […]
Aspirin is an
Options
(a) antithistamine (b) antimalarial (c) analgesic (d) antibiotic
Correct Answer:
analgesic
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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