MCQ
$ $

  • B

  • C

  • D

Answer

Correct option: A.

a
$Zn-Hg/HCl$ can reduce all functional group.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

In carius method of estimation of halogen $0.15\,g$ of an organic compound gave $0. 12\,g$ of $AgBr$. Find out the percentage.....$\%$ of bromine in the compound
The correct order of first ionization enthalpy values of the following elements is: 
(A) O
(B) N
(C) Be
(D) F
(E) B
Choose the correct answer from the options given below :
The correct statement about $ICl_5$ and $ICl_4^-$ is
In this diol
The major product $(C)$ is
$HgCl_2$ is a covalent compound, sparingly soluble in water, the solubility increases by the addition of chloride ions due to
Among the statements $(a)-(d)$, the incorrect ones are

$(a)$ Octahedral $Co(III)$ complexes with strong field ligands have very high magnetic moments

$(b)$ When $\Delta_{0}< P$, the $d-$electron configuration of $Co(III)$ in an octahedral complex is $t_{\text {eg }}^{4} e_{g}^{2}$

$(c)$ Wavelength of light absorbed by $\left[\mathrm{Co}(\mathrm{en})_{3}\right]^{3+}$ is lower than that of $\left[\mathrm{CoF}_{6}\right]^{3-}$

$(d)$ If the $\Delta_{0}$ for an octahedral complex of $\mathrm{Co}(\mathrm{III})$ is $18,000 \;\mathrm{cm}^{-1},$ the $\Delta_{\mathrm{t}}$ for its tetrahedral complex with the same ligand will be $16,000\;\mathrm{cm}^{-1}$

The velocity constant of first order reaction is expressed in the units
Given that the bond energy of hydrogen-hydrogen bond is $436\, kJ/mol$, that of hydrogen-oxygen bond is $464\, kJ/mol$, and those in oxygen molecules $496\, kJ/mol$, what is the approximate heat of reaction for $2H_2 + O_2 \longrightarrow 2H_2O$ ? .....$kJ/mol$
Which one the following compounds will readily react with dilute $\mathrm{NaOH}$ ?