1
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
$$\mathrm{Fe}$$
2
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
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