Single membrane bound organelle is
Options
(a) lysosome (b) plastid (c) nucleus (d) mitochondria
Correct Answer:
lysosome
Explanation:
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Nucleus/core of the chlorophyll contains
Options
(a) Fe (b) Mn (c) Mg (d) CH₃
Correct Answer:
Mg
Explanation:
Nucleus/core of chlorophyll contains magnesium. The chlorophylls are basically chelate salts of magnesium (Mg).
Main function of dictyosomes is
Options
(a) respiration (b) storage (c) secretion (d) breakdown of fats
Correct Answer:
secretion
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Electronic configuration of hydride ion is
Options
(a) 1s¹ (b) 1s² (c) s¹⁺¹ (d) s²⁺
Correct Answer:
1s²
Explanation:
Hydrogen atom = 1s¹, Hydride ion(H⁻) = 1s².
Numbers of moles of K₂Cr₂O₇ reduced by one mole os Sn²⁺
Options
(a) ⁺1/3 (b) 3 (c) ⁺1/6 (d) 6
Correct Answer:
⁺1/3
Explanation:
No explanation available. Be the first to write the […]
Pacinian corpuscles are abundantly found in
Options
(a) skin (b) blood (c) tissue (d) kidney
Correct Answer:
skin
Explanation:
Pacinian corpuscles occur in the skin of certain parts of the body in mammals. […]
Aniline on reaction with acetyl chloride gives
Options
(a) phenol (b) acetamide (c) acetanilide (d) benzene
Correct Answer:
acetanilide
Explanation:
No explanation available. Be the first to write the explanation for this question […]
SN2 mechanism proceeds through intervention of
Options
(a) carbonium ion (b) transition state (c) free radical (d) carbanion
Correct Answer:
transition state
Explanation:
S(N)2 mechanism proceeds through transition state. e.g. When the methyl chloride […]
In the reaction of phenol with CHCl₃ and aq.KOH the electrophile attacking the ring is
Options
(a) CHCl₃ (b) CHCl₂ (c) :CCl₂ (d) COCl₂
Correct Answer:
:CCl₂
Explanation:
The electrophile is dichloromethylene :CCl₂ […]
Geometrical isomerism is possible in
Options
(a) 1-butene (b) propene (c) 2-butene (d) ethene
Correct Answer:
2-butene
Explanation:
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