1
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the correct statements about boron.

I. It has high melting point.

II. It has high density.

III. It has high electrical conductivity.

IV. B-10 isotope of it has high ability to absorb neutrons.

A
I and II only
B
II and III only
C
III and IV only
D
I and IV only
2
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

Assertion (A) HCl gas is dried by passing through concentrated H$$_2$$SO$$_4$$.

Reason (R) HCl gas reacts with NH$$_3$$ that gives white fumes.

A
Both A and R are correct and R is the correct explanation of A.
B
Both A and R are correct and R is not the correct explanation of A.
C
A is correct but R is incorrect.
D
A is incorrect but R is correct.
3
AP EAPCET 2021 - 20th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

What would be the product of following reaction?

$$\mathrm{SiCl}_4 \stackrel{\text { Excess of } \mathrm{H}_2 \mathrm{O}}{\longrightarrow} \text { ? (Major product) }$$

A
$$\mathrm{SiCl}_3(\mathrm{OH})$$
B
$$\mathrm{Si}(\mathrm{OH})_4$$
C
$$\mathrm{SiCl}_2(\mathrm{OH})_2$$
D
$$\mathrm{SiCl}_4$$ (no reaction)
4
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify (P) and (Q) in the following reaction.

AP EAPCET 2021 - 19th August Morning Shift Chemistry - p-Block Elements Question 26 English

A
$$P:\left(\mathrm{CH}_3\right)_3 \mathrm{SiCl}, \quad Q:\left(\mathrm{CH}_3\right)_3 \mathrm{SiOH}$$
B
$$P:\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2, Q:\left(\mathrm{CH}_3\right)_2 \mathrm{Si}(\mathrm{OH})_2$$
C
$$P:\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2, \quad Q:\left(\mathrm{CH}_3\right)_2 \mathrm{Si}(\mathrm{OH}) \mathrm{Cl}$$
D
$$P:\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2, Q:\left(\mathrm{CH}_3\right)_2 \mathrm{SiO}$$
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