Medium
Which one of the following is the lightest?
- A$0.2 \ mol$ of hydrogen gas
- B$6.023 \times 10^{23}$ molecules of nitrogen
- C$0.1 \ g$ of silver
- D$0.1 \ mol$ of oxygen gas
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Similar Questions
Match List-$I$ with List-$II$.
List-$I$ List-$II$ $A$. $16 \ g \ CH_{4(g)}$ $I$. Weighs $28 \ g$ $B$. $1 \ g \ H_{2(g)}$ $II$. $60.2 \times 10^{23}$ electrons $C$. $1 \ mole \ N_{2(g)}$ $III$. Weighs $32 \ g$ $D$. $0.5 \ mol \ SO_{2(g)}$ $IV$. Occupies $11.2 \ L$ volume at $STP$
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
| $A$. $16 \ g \ CH_{4(g)}$ | $I$. Weighs $28 \ g$ |
| $B$. $1 \ g \ H_{2(g)}$ | $II$. $60.2 \times 10^{23}$ electrons |
| $C$. $1 \ mole \ N_{2(g)}$ | $III$. Weighs $32 \ g$ |
| $D$. $0.5 \ mol \ SO_{2(g)}$ | $IV$. Occupies $11.2 \ L$ volume at $STP$ |
Choose the correct answer from the options given below:
DifficultJEE MAIN 2023
View SolutionThe more commonly used baking powder contains about $30\%$ $NaHCO_3$,$20\%$ $NaAl(SO_4)_2$,$10\%$ $Ca(H_2PO_4)_2$ and $40\%$ starch. Which of the following statements is/are correct?
Difficult
View SolutionIdentify the compound formed from elements $X, Y, Z$ having oxidation states $+2, +5, -2$ respectively.
If $10^{21}$ molecules are removed from $100 \, mg$ of $CO_2$,how many moles of $CO_2$ remain?
Medium
View SolutionHydrochloric acid solutions $A$ and $B$ have concentrations of $0.5 \ N$ and $0.1 \ N$ respectively. The volumes of solutions $A$ and $B$ required to make $2 \ L$ of $0.2 \ N$ $HCl$ are:
Medium
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