1
KCET 2020
MCQ (Single Correct Answer)
+1
-0

A metal exists as an oxide with formula $$M_{0.96}$$ O. Metal, $$M$$ can exist as $$M^{2+}$$ and $$M^{3+}$$ in its oxide $$M_{0.96} \mathrm{O}$$. The percentage of $$\mathrm{M}^{3+}$$ in the oxide is nearly

A
8.3%
B
4.6%
C
5%
D
9.6%
2
KCET 2019
MCQ (Single Correct Answer)
+1
-0

The mass of $$\mathrm{AgCl}$$ precipitated when a solution containing $$11.70 \mathrm{~g}$$ of $$\mathrm{NaCl}$$ is added to a solution containing $$3.4 \mathrm{~g}$$ of $$\mathrm{AgNO}_3$$ is [Atomic mass of $$\mathrm{Ag}=108$$, Atomic mass of $$\mathrm{Na}=23$$]

A
5.74 g
B
1.17 g
C
2.87 g
D
6.8 g
3
KCET 2018
MCQ (Single Correct Answer)
+1
-0
1.0 g of Mg is burnt with 0.28 g of $\mathrm{O}_2$ in a closed vessel. Which reactant is left in excess and how much?
A
$\mathrm{Mg}, 5.8 \mathrm{~g}$
B
$\mathrm{Mg}, 0.58 \mathrm{~g}$
C
$\mathrm{O}_2, 0.24 \mathrm{~g}$
D
$\mathrm{O}_2, 2.4 \mathrm{~g}$
4
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
$\mathrm{MnO}_2+4 \mathrm{HCl} \rightarrow \mathrm{MnCl}_2+\mathrm{Cl}_2+2 \mathrm{H}_2 \mathrm{O}$
KCET Subjects
EXAM MAP