Match Column-$I$ with Column-$II$ for the given properties/applications mentioned therein.
Column-$I$ Column-$II$ $A$. $H$ $1$. Used in the name of perhydrol. $B$. $H_2$ $2$. Can be reduced to dihydrogen by $NaH$. $C$. $H_2O$ $3$. Can be used in hydroformylation of olefin. $D$. $H_2O_2$ $4$. Can be used in cutting and welding.
| Column-$I$ | Column-$II$ |
| $A$. $H$ | $1$. Used in the name of perhydrol. |
| $B$. $H_2$ | $2$. Can be reduced to dihydrogen by $NaH$. |
| $C$. $H_2O$ | $3$. Can be used in hydroformylation of olefin. |
| $D$. $H_2O_2$ | $4$. Can be used in cutting and welding. |
(A-4, B-3, C-2, D-1) The correct matches are:
$A-4$: Atomic hydrogen $(H)$ is used in atomic hydrogen welding and cutting.
$B-3$: Dihydrogen $(H_2)$ is used in the hydroformylation of olefins to produce aldehydes.
$C-2$: Water $(H_2O)$ can be reduced to dihydrogen by $NaH$ $(NaH + H_2O \rightarrow NaOH + H_2)$.
$D-1$: Hydrogen peroxide $(H_2O_2)$ is known as perhydrol.
Therefore,the correct sequence is $A-4, B-3, C-2, D-1$.
$A-4$: Atomic hydrogen $(H)$ is used in atomic hydrogen welding and cutting.
$B-3$: Dihydrogen $(H_2)$ is used in the hydroformylation of olefins to produce aldehydes.
$C-2$: Water $(H_2O)$ can be reduced to dihydrogen by $NaH$ $(NaH + H_2O \rightarrow NaOH + H_2)$.
$D-1$: Hydrogen peroxide $(H_2O_2)$ is known as perhydrol.
Therefore,the correct sequence is $A-4, B-3, C-2, D-1$.
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$I$. Atomic hydrogen is obtained by passing an electric arc through hydrogen gas.
$II$. Hydrogen gas does not reduce heated aluminum oxide.
$III$. Finely divided palladium absorbs a large volume of hydrogen gas.
$IV$. Pure nascent hydrogen is obtained by the reaction of $Na$ with $C_2H_5OH$.
Which of the above statements are correct?
$I$. Atomic hydrogen is obtained by passing an electric arc through hydrogen gas.
$II$. Hydrogen gas does not reduce heated aluminum oxide.
$III$. Finely divided palladium absorbs a large volume of hydrogen gas.
$IV$. Pure nascent hydrogen is obtained by the reaction of $Na$ with $C_2H_5OH$.
Which of the above statements are correct?
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$\text{Gas } (A) \text{ burns with a blue flame and is oxidised to gas } (B)$.
$\text{Gas } (A) + Cl_2 \to (D) \xrightarrow{NH_3, \Delta } (E)$.
$A, B, C \text{ and } E \text{ are}$
$\text{Gas } (A) \text{ burns with a blue flame and is oxidised to gas } (B)$.
$\text{Gas } (A) + Cl_2 \to (D) \xrightarrow{NH_3, \Delta } (E)$.
$A, B, C \text{ and } E \text{ are}$
Match the following columns:
Column-$I$ Column-$II$ $(i)$ Hydrogen peroxide $(a)$ Used as air purifier in submarines $(ii)$ Calcium sulphate hemihydrate $(b)$ Used for water softening $(iii)$ Potassium superoxide $(c)$ Antiseptic $(iv)$ Calgon $(d)$ Plaster of Paris
| Column-$I$ | Column-$II$ |
| $(i)$ Hydrogen peroxide | $(a)$ Used as air purifier in submarines |
| $(ii)$ Calcium sulphate hemihydrate | $(b)$ Used for water softening |
| $(iii)$ Potassium superoxide | $(c)$ Antiseptic |
| $(iv)$ Calgon | $(d)$ Plaster of Paris |
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