1
AP EAPCET 2025 - 24th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the incorrect statement about silica.

A

It is acidic in nature.

B

It has no reaction with most of acids except HF.

C

With NaOH it forms sodium silicate.

D

Like graphite, it has two dimensional structure.

2
AP EAPCET 2025 - 24th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The number of $\mathrm{P}=\mathrm{O}, \mathrm{P}-\mathrm{P}$ bonds present in oxoacid of phosphorus, prepared by treating red $\mathrm{P}_4$ with alkali are respectively

A

2,1

B

1,1

C

1,2

D

2,2

3
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the incorrect statement about the group 13 elements.

A

Nature of aqueous solution of borax is alkaline.

B

Orthoboric acid is a weak tribasic acid.

C

Metaboric acid on heating gives an acidic oxide.

D

$\mathrm{LiBH}_4$ acts as a reducing agent.

4
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following statements are correct?

(I) $\mathrm{SnF}_4$ is ionic in nature.

(II) Stability of dihalides of group 14 elements increases down the group.

(III) $\mathrm{GeCl}_2$ is more stable than $\mathrm{GeCl}_4$.

A

I, II and III

B

I and III only

C

II and III only

D

I and II only

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