36. The given graphs / data I, II, III and IV represent general trends observed for different physisorption and chemisorption processes under mild conditions of temperature and pressure. Which of the following choice(s) about I, II, III and IV is (are) correct? [Figure] (A) I is physisorption and II is chemisorption (B) I is physisorption and III is chemisorption (C) IV is chemisorption and II is chemisorption (D) IV is chemisorption and III is chemisorption
ANSWER : AC
For the given aqueous reactions, which of the statement(s) is (are) true ? [Figure] (A) The first reaction is a recux reaction. (B) White precipitate is $\mathrm { Zn } _ { 3 } \left[ \mathrm { Fe } ( \mathrm { CN } ) _ { 6 } \right] _ { 2 }$. (C) Addition of filtrate to starch solution gives blue colour. (D) White precipitate is soluble in NaOH solution.
ANSWER : ACD
With respect to graphite and diamond, which of the statement(s) given below is (are) correct ? (A) Graphite is harder than diamond. (B) Graphite has higher electrical conductivity than diamond. (C) Graphite has higher thermal conductivity than diamond. (D) Graphite has higher C-C bond order than diamond.
ANSWER : BD
With reference to the scheme given, which of the given statment(s) about $\mathbf { T } , \mathbf { U } , \mathbf { V }$ and $\mathbf { W }$ is (are) correct ? [Figure] (A) T is soluble in hot aqueous NaOH (B) $\mathbf { U }$ is optically active (C) Molecular formula of $\mathbf { W }$ is $\mathrm { C } _ { 10 } \mathrm { H } _ { 18 } \mathrm { O } _ { 4 }$ (D) $\mathbf { V }$ gives effervescence on treatment with aqueous $\mathrm { NaHCO } _ { 3 }$
ANSWER : ACD
$29.2 \% ( \mathrm { w } / \mathrm { w } ) \mathrm { HCl }$ stock solution has density of $1.25 \mathrm {~g} \mathrm {~mL} ^ { - 1 }$. The molecular weight of HCl is $36.5 \mathrm {~g} \mathrm {~mol} ^ { - 1 }$. The volume ( mL ) of stock solution required to prepare a 200 mL solution of 0.4 M HCl is
36. The given graphs / data I, II, III and IV represent general trends observed for different physisorption and chemisorption processes under mild conditions of temperature and pressure. Which of the following choice(s) about I, II, III and IV is (are) correct?\\
\includegraphics[max width=\textwidth, alt={}, center]{4e050d28-8dd5-4115-bb8a-1c7b16f3381f-20_1051_1348_542_313}\\
(A) I is physisorption and II is chemisorption\\
(B) I is physisorption and III is chemisorption\\
(C) IV is chemisorption and II is chemisorption\\
(D) IV is chemisorption and III is chemisorption
\section*{ANSWER : AC}
\begin{enumerate}
\setcounter{enumi}{36}
\item For the given aqueous reactions, which of the statement(s) is (are) true ?\\
\includegraphics[max width=\textwidth, alt={}, center]{4e050d28-8dd5-4115-bb8a-1c7b16f3381f-21_524_1340_459_280}\\
(A) The first reaction is a recux reaction.\\
(B) White precipitate is $\mathrm { Zn } _ { 3 } \left[ \mathrm { Fe } ( \mathrm { CN } ) _ { 6 } \right] _ { 2 }$.\\
(C) Addition of filtrate to starch solution gives blue colour.\\
(D) White precipitate is soluble in NaOH solution.
\end{enumerate}
\section*{ANSWER : ACD}
\begin{enumerate}
\setcounter{enumi}{37}
\item With respect to graphite and diamond, which of the statement(s) given below is (are) correct ?\\
(A) Graphite is harder than diamond.\\
(B) Graphite has higher electrical conductivity than diamond.\\
(C) Graphite has higher thermal conductivity than diamond.\\
(D) Graphite has higher C-C bond order than diamond.
\end{enumerate}
\section*{ANSWER : BD}
\begin{enumerate}
\setcounter{enumi}{38}
\item With reference to the scheme given, which of the given statment(s) about $\mathbf { T } , \mathbf { U } , \mathbf { V }$ and $\mathbf { W }$ is (are) correct ?\\
\includegraphics[max width=\textwidth, alt={}, center]{4e050d28-8dd5-4115-bb8a-1c7b16f3381f-22_591_728_1090_301}\\
(A) T is soluble in hot aqueous NaOH\\
(B) $\mathbf { U }$ is optically active\\
(C) Molecular formula of $\mathbf { W }$ is $\mathrm { C } _ { 10 } \mathrm { H } _ { 18 } \mathrm { O } _ { 4 }$\\
(D) $\mathbf { V }$ gives effervescence on treatment with aqueous $\mathrm { NaHCO } _ { 3 }$
\end{enumerate}
ANSWER : ACD\\