Solution of sodium metals in liquid ammonia strongly reduces due to the presence in which of the following solution
Options
(a) Sodium hydride (b) Sodium amide (c) Solvated electrons (d) Sodium atoms
Correct […]
When sodium bicarbonate is heated strongly for calcined in a Kiln, it forms
Options
(a) NaCO₃ (b) Na (c) NaHCO₃ (d) Na₂CO₃
Correct Answer:
Na₂CO₃
Explanation:
No explanation available. Be the first to […]
Which of the following alkyl halide is used as a methylating agent
Options
(a) C₂H₅Cl (b) CH₃I (c) C₆H₅Cl (d) C₂H₅Br
Correct Answer:
CH₃I
Explanation:
Methyl iodide (CH₃I) is used as a methylating […]
Hydrolytic reaction of fats, with caustic soda, is known as
Options
(a) saponification (b) acetylation (c) esterfication (d) carboxylation
Correct Answer:
saponification
Explanation:
Hydrolytic reaction of facts with caustic soda is known as […]
Cosin used to detect end point of precipitation titration by absorption is called
Options
(a) chemical indicator (b) absorption indicator (c) normal indicator (d) adsorption indicator
Correct Answer:
adsorption indicator
Explanation: […]
He₂ does not exist because its
Options
(a) molecular orbital=0 (b) bond energy=0 (c) bond order=0 (d) both(b) and (c)
Correct Answer:
bond order=0
Explanation:
Molecular orbital configuration of He₂ is σ 1s², […]
Pacemaker is
Options
(a) SV node (b) SA node (c) Purkinjie fibres (d) AV node
Correct Answer:
SA node
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Persons who are colour blind can not distinguish?
Options
(a) green & blue (b) red & green (c) yellow & white (d) black & yellow
Correct Answer:
red & green
Explanation:
No explanation […]
Which of the following species of honey bee is reared in artificial hives?
Options
(a) Apis florea (b) Apis indica (c) Apis dorsata (d) None of these
Correct Answer:
Apis indica
Explanation:
No […]
Guttation is the release of liquid water from veins at leaf margins. It is caused by
Options
(a) absorption (b) transpiration (c) high root pressure (d) translocation
Correct Answer:
high root pressure
Explanation: […]
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