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1
KCET 2017
MCQ (Single Correct Answer)
+1
-0
Select wrong chemical reaction among the following.
A
$8 \mathrm{NH}_3+3 \mathrm{Cl}_2 \rightarrow 6 \mathrm{NH}_4 \mathrm{Cl}+\mathrm{N}_2$
B
$2 \mathrm{Ca}(\mathrm{OH})_2+2 \mathrm{Cl}_2 \rightarrow \mathrm{Ca}(\mathrm{OCl})_2+\mathrm{CaCl}_2+2 \mathrm{H}_2 \mathrm{O}$
C
$2 \mathrm{NaOH}+\mathrm{Cl}_2 \rightarrow 2 \mathrm{NaCl}+\mathrm{H}_2+\mathrm{O}_2$
D
$\mathrm{MnO}_2+4 \mathrm{HCl} \rightarrow \mathrm{MnCl}_2+\mathrm{Cl}_2+2 \mathrm{H}_2 \mathrm{O}$
2
KCET 2017
MCQ (Single Correct Answer)
+1
-0
If $3.01 \times 10^{20}$ molecules are removed from 98 mg of $\mathrm{H}_2 \mathrm{SO}_4$, then number of moles of $\mathrm{H}_2 \mathrm{SO}_4$ left are
A
$0.1 \times 10^{-3} \mathrm{~mol}$
B
$9.95 \times 10^{-2} \mathrm{~mol}$
C
$0.5 \times 10^{-3} \mathrm{~mol}$
D
$1.66 \times 10^{-3} \mathrm{~mol}$
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