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

The oxide of potassium that does not exist is

A
$$\mathrm{K}_2 \mathrm{O}$$
B
$$\mathrm{KO}_2$$
C
$$\mathrm{K}_2 \mathrm{O}_2$$
D
$$\mathrm{K}_2 \mathrm{O}_3$$
2
KCET 2020
MCQ (Single Correct Answer)
+1
-0

The metal that produce $$\mathrm{H}_2$$ with both dil. $$\mathrm{HCl}$$ and $$\mathrm{NaOH}(a q)$$ is

A
$$\mathrm{Zn}$$
B
$$\mathrm{Mg}$$
C
$$\mathrm{Ca}$$
D
$$\mathrm{Fe}$$
3
KCET 2019
MCQ (Single Correct Answer)
+1
-0

Which cleansing agent gets precipitated in hard water?

A
Sodium lauryl sulphate
B
Sodium stearate
C
Cetyl trimethyl ammonium bromide
D
Sodium dodecyl benzene sulphonate
4
KCET 2018
MCQ (Single Correct Answer)
+1
-0
Dead burnt plaster is
A
$\mathrm{CaSO}_4$
B
$\mathrm{CaSO}_4 \cdot \frac{1}{2} \mathrm{H}_2 \mathrm{O}$
C
$\mathrm{CaSO}_4 \cdot \mathrm{H}_2 \mathrm{O}$
D
$\mathrm{CaSO}_4 \cdot 2 \mathrm{H}_2 \mathrm{O}$
KCET Subjects
EXAM MAP