The metal-carbon bond in metal carbonyl possesses
Options
(a) only s character (b) only p character (c) both s and p character (d) only d character
Correct Answer:
only p character
Explanation:
In […]
Which one of the following statements about transition elements is incorrect
Options
(a) They show variable oxidation states (b) All the ions are coloured (c) They exhibit diamagnetic and paramagnetic properties (d) They […]
For the reaction R → P a graph of [R] against time is found to be a straight line with negative slop. What is the order of reaction
Options
(a) Second order (b) […]
Which one of the following compounds exhibit both schottky and frenkel defects
Options
(a) NaCl (b) AgCl (c) AgBr (d) AgI
Correct Answer:
AgBr
Explanation:
No explanation available. Be the first to write […]
Which of the following statements is true
Options
(a) Chemisorption forms unimolecular layer (b) Chemisorption is a reversible process (c) Chemisorption is independent of pressure (d) Chemisorption has low enthalpy change
Correct Answer: […]
Identify the molecule that has zero dipole moment
Options
(a) CH₃Cl (b) CHCl₃ (c) CH₂Cl₂ (d) CCl₄
Correct Answer:
CCl₄
Explanation:
No explanation available. Be the first to write the explanation for this […]
Concentration of the urine is controlled by
Options
(a) MSH (b) ADH (c) oxytocin (d) ACTH
Correct Answer:
ADH
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Cannizzaro reaction is not given by
Options
(a) methanal (b) phenyl methanal (c) 2,2-dimethylbutanal (d) phenyl ethanal
Correct Answer:
phenyl ethanal
Explanation:
No explanation available. Be the first to write the explanation for […]
Which one of the following has an aromatic character
Options
(a) Cyclopentadiene (b) Cycloheptatrienylium cation (c) cyclopropyne (d) Cycloheptatrienyl anion
Correct Answer:
Cycloheptatrienylium cation
Explanation:
No explanation available. Be the first to write […]
The correct order of decreasing acidic nature of H₂O,ROH,CH≡CH and NH₃ is
Options
(a) CH≡CH>H₂O>ROH>NH₃ (b) H₂O>ROH>CH≡CH>NH₃ (c) ROH>NH₃>CH≡CH>H₂O (d) H₂o>ROH>NH₃>CH≡CH
Correct Answer:
H₂O>ROH>CH≡CH>NH₃
Explanation:
No explanation available. Be the first to write […]
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