1
TG EAPCET 2025 (Online) 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The incorrect statement about Castner-kellner cell process is

A

sodium hydroxide is prepared.

B

brine solution is the electrolyte.

C

mercury acts as anode and carbon rod acts as cathode.

D

chlorine gas liberates at anode.

2
TG EAPCET 2025 (Online) 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is an incorrect statement about the compounds of group 13 elements?

A

All the trihalides exist except $\mathrm{TII}_3$.

B

Trihalides on hydrolysis form tetrahedral species.

C

Diborane is an example of electron precise hydride.

D

Hydrolysis of diborane gives boric acid.

3
TG EAPCET 2025 (Online) 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The incorrect statement about the oxidation states of group 14 elements is

A

In addition to $+4,+2$ carbon also shows negative oxidation states.

B

Tin in +2 state acts as a reducing agent.

C

Lead in +2 state acts as good reducing agent.

D

Lead in +4 state acts as a good oxidising agent.

4
TG EAPCET 2025 (Online) 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In drinking water, if the maximum prescribed concentration of copper is $x \mathrm{mgdm}^{-3}$, the maximum prescribed concentration of zinc will be

A

$\frac{15}{x}$

B

$\frac{x}{15}$

C

$\frac{6}{10} x$

D

$\frac{5}{6} x$

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