In Kjeldahl’s method,ammonia from 5g of food neutralizes 30 cm³ of 0.1 N acid.The percentage of nitrogen in the food is
Options
(a) 0.84 (b) 8.4 (c) 16.8 (d) 1.68
Correct Answer:
0.84
In acetylene molecule, the two carbon atoms are linked by
Options
(a) one sigma bond and two pi bonds (b) two sigma bonds and one pi bond (c) three sigma bonds (d) three […]
Number of σ and π- bonds in acetylene is
Options
(a) 2σ and 3π (b) 3σ and 2π (c) 3σ and 3π (d) 2σ and 2π
Correct Answer:
3σ and 2π
Explanation:
In […]
The IUPAC name of tertiary butyl chloride is
Options
(a) 2-chloro-2-methypropane (b) 3-chlorobutane (c) 4-chlorobutane (d) 1-2-chloro-3-methylpropane
Correct Answer:
2-chloro-2-methypropane
Explanation:
No explanation available. Be the first to write the explanation for this […]
The total number of isomeric alcohols with the molecular formula C₄H₉OH is
Options
(a) 5 (b) 3 (c) 2 (d) 4
Correct Answer:
2
Explanation:
Molecular formula C₄H₉OH exists in two isomeric alcoholic […]
Which of the following gases are poisonous
Options
(a) CO₂ (b) CO (c) CHCl₃ (d) N₂
Correct Answer:
CO
Explanation:
No explanation available. Be the first to write the explanation for this question […]
The functional isomer of ethanol is
Options
(a) ethylene glycol (b) methanol (c) dimethyl ether (d) diethyl ether
Correct Answer:
dimethyl ether
Explanation:
No explanation available. Be the first to write the explanation […]
A nucleophilic substitution reaction proceeds through SN1 mechanism. So, the reaction is
Options
(a) unimolecular (b) bimolecular (c) termolecular (d) rate depends on concentration of incoming nucleophile
Correct Answer:
unimolecular
Explanation:
No explanation […]
An alkane with a molecular formula C₆H₁₄ reacts with chlorine in the presence of light and heat to give two constitutionally isomeric monochlorides of molecular formula C₆H₁₃Cl.What is the most reasonable starting alkane
Options […]
Alkyl halides undergoing substitution nucleophilic bimolecular reaction involves
Options
(a) formation of carbocation (b) racemic mixture (c) inversion of configuration (d) retention of configuration
Correct Answer:
inversion of configuration
Explanation:
No explanation available. […]
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