Consider the following statements:
$I$. 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?
- AOnly $I$
- BOnly $II$
- C$I, II$ and $III$
- D$II, III$ and $IV$
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Similar Questions
Correlate the items listed in Column $I$ with those listed in Column $II$. Find out as many correlations as you can.
Column $I$ Column $II$ $A$. Synthesis gas $1$. $Na_2[Na_4(PO_3)_6]$ $B$. Dihydrogen $2$. Oxidising agent $C$. Heavy water $3$. Softening of water $D$. Calgon $4$. Reducing agent $E$. Hydrogen peroxide $5$. Stoichiometric compounds of $s-$block elements $F$. Salt like hydrides $6$. Prolonged electrolysis of water $7$. $Zn + NaOH$ $8$. $Zn + dil. H_2SO_4$ $9$. Synthesis of methanol $10$. Mixture of $CO$ and $H_2$
| Column $I$ | Column $II$ |
| $A$. Synthesis gas | $1$. $Na_2[Na_4(PO_3)_6]$ |
| $B$. Dihydrogen | $2$. Oxidising agent |
| $C$. Heavy water | $3$. Softening of water |
| $D$. Calgon | $4$. Reducing agent |
| $E$. Hydrogen peroxide | $5$. Stoichiometric compounds of $s-$block elements |
| $F$. Salt like hydrides | $6$. Prolonged electrolysis of water |
| $7$. $Zn + NaOH$ | |
| $8$. $Zn + dil. H_2SO_4$ | |
| $9$. Synthesis of methanol | |
| $10$. Mixture of $CO$ and $H_2$ |
Difficult
View SolutionWhen oxalic acid reacts with conc. $H_2SO_4$,two gases produced are of neutral and acidic in nature respectively. Potassium hydroxide absorbs one of the two gases. The product formed during this absorption and the gas which gets absorbed are respectively
Medium
View SolutionMatch the correct option from Column $-A$ and Column $-B.$
Column $-A$ Column $-B$ $(1).$ $H_2O_2$ $(p).$ As moderator $(2).$ $D_2O$ $(q).$ As fuel $(3).$ Liquid $H_2$ $(r).$ For to make hard water soft $(4).$ Zeolite $(s).$ As disinfectant
| Column $-A$ | Column $-B$ |
| $(1).$ $H_2O_2$ | $(p).$ As moderator |
| $(2).$ $D_2O$ | $(q).$ As fuel |
| $(3).$ Liquid $H_2$ | $(r).$ For to make hard water soft |
| $(4).$ Zeolite | $(s).$ As disinfectant |
Medium
View SolutionIn which of the following reactions,hydrogen is liberated?
$(i)$ $Al_{(s)} + HCl_{(aq)} \rightarrow$
$(ii)$ $Al_{(s)} + NaOH_{(aq)} \rightarrow$
$(iii)$ $NaBH_4 + I_2 \rightarrow$
$(i)$ $Al_{(s)} + HCl_{(aq)} \rightarrow$
$(ii)$ $Al_{(s)} + NaOH_{(aq)} \rightarrow$
$(iii)$ $NaBH_4 + I_2 \rightarrow$
Match the items in Column-$I$ with the relevant item in Column-$II$.
Column-$I$ Column-$II$ $A$. Hydrogen peroxide is used as a $1$. zeolite $B$. Used in Calgon method $2$. perhydrol $C$. Permanent hardness of hard water is removed by $3$. sodium hexametaphosphate $4$. propellant
| Column-$I$ | Column-$II$ |
| $A$. Hydrogen peroxide is used as a | $1$. zeolite |
| $B$. Used in Calgon method | $2$. perhydrol |
| $C$. Permanent hardness of hard water is removed by | $3$. sodium hexametaphosphate |
| $4$. propellant |
Medium
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