p-Block Elements · Chemistry · AP EAPCET

Start Practice

MCQ (Single Correct Answer)

1

Two statements are given below.

Statement I : $\mathrm{SnF}_4, \mathrm{PbF}_4$ are ionic in nature.

Statement II : GeCl ${ }_2$ is more stable than $\mathrm{GeCl}_4$

The correct answer is

AP EAPCET 2024 - 22th May Evening Shift
2

In which of the following sets allotropes of carbon are correctly matched with their uses?

i. Graphite - Crucibles

ii. Activated charcoal - Water filters

iii. Carbon black - Fuel

The correct answer is

AP EAPCET 2024 - 22th May Morning Shift
3
Two of the products formed by the reaction of ' $X$ with HCl are gases. What is ' $X$ '?
AP EAPCET 2024 - 22th May Morning Shift
4
Hydrated sodium aluminium silicate is called
AP EAPCET 2024 - 21th May Evening Shift
5
Which of the allotropic forms of carbon is aromatic in nature?
AP EAPCET 2024 - 21th May Evening Shift
6

$\mathrm{P}_2 \mathrm{O}_3+\mathrm{H}_2 \mathrm{O} \rightarrow X$, Red $\mathrm{P}_4+$ alkali $\rightarrow Y$

$X, Y$ are oxoacids of phosphorous. The number of $\mathrm{P}-\mathrm{OH}$ bonds in $X, Y$ respectively is

$$ \mathrm{P}_2 \mathrm{O}_3+\mathrm{H}_2 \mathrm{O} \rightarrow X $$

AP EAPCET 2024 - 21th May Evening Shift
7
A Lewis acid ' $X$ ' reacts with $\mathrm{LiAlH}_4$ in ether medium to give a highly toxic gas. ${ }^{\prime} Y^{\prime}$, ' $Y$ ' when heated with $\mathrm{NH}_3$ gives a compound known as inorganic benzene. ' $Y^{\prime}$ burns in oxygen and gives $\mathrm{H}_2 \mathrm{O}$ and ' $Z$ ', ' $Z$ ' is
AP EAPCET 2024 - 21th May Morning Shift
8

Which of the following are correct?

i. Basic structural unit of silicates is $-R_2 \mathrm{SiO}-$

ii. Silicones are biocompatible

iii. Producer gas contains CO and $\mathrm{N}_2$

The correct option is

AP EAPCET 2024 - 20th May Evening Shift
9
' $X$ ' on hydrolysis gives two products. One of them is solid. What is ' $X$ '?
AP EAPCET 2024 - 20th May Morning Shift
10

Which of the following reactions give phosphine?

i. Reaction of calcium phosphide with water

ii. Heating white phosphorous with concentrated NaOH solution in inert atmosphere

iii. Heating red phosphorous with alkali

AP EAPCET 2024 - 20th May Morning Shift
11

Observe the following stoichiometric equation

$$ \mathrm{P}_4+3 \mathrm{OH}^{-}+3 \mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{PH}_3+3 x^{-} $$

What is the conjugate acid of $x^{-}$?

AP EAPCET 2024 - 19th May Evening Shift
12

Identify the correct statements

i. Oxidation of $\mathrm{NaBH}_4$ with $\mathrm{I}_2$ gives $\mathrm{B}_2 \mathrm{H}_6$

ii. $\mathrm{B}_2 \mathrm{H}_6$ burns in oxygen and releases an enormous amount of energy

iii. $\mathrm{B}_2 \mathrm{H}_6$ on hydrolysis gives a tribasic acid

AP EAPCET 2024 - 19th May Evening Shift
13
The disproportionation products of ortho phosphorus acid are
AP EAPCET 2024 - 19th May Evening Shift
14
Aluminium carbide on reaction with $\mathrm{D}_2 \mathrm{O}$ gives $\mathrm{Al}(O D)_3$ and ' $X^{\prime}$. What is ' $X^{\prime}$ '?
AP EAPCET 2024 - 18th May Morning Shift
15
When chlorine reacts with hot and conc. NaOH . The products formed are
AP EAPCET 2024 - 18th May Morning Shift
16

Identify the $$P$$ and $$Q$$ of the following reaction

$$P+Q \longrightarrow\left[B(O H)_4\right]^{-}+\mathrm{H}_3 \mathrm{O}^{+}$$

AP EAPCET 2022 - 5th July Morning Shift
17

Among $$\mathrm{P}_4, \mathrm{~S}_8$$ and $$\mathrm{N}_2$$ the elements which undergo disproportionation when heated with NaOH solution.

AP EAPCET 2022 - 4th July Evening Shift
18

Identify the correct statements about the anomalous behaviour of boron.

I. Boron trihalides can form dimeric structures.

II. Boron shows +1 as stable oxidation state.

III. Maximum covalency of boron is four.

IV. Boron does not form $$\mathrm{BF}_6^{6-}$$ ion.

AP EAPCET 2022 - 4th July Evening Shift
19

Which of the following is formed when $$\mathrm{SO}_3$$ is absorbed by concentrated $$\mathrm{H}_2 \mathrm{SO}_4$$ ?

AP EAPCET 2022 - 4th July Evening Shift
20

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.

AP EAPCET 2022 - 4th July Morning Shift
21

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.

AP EAPCET 2022 - 4th July Morning Shift
22

What would be the product of following reaction?

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

AP EAPCET 2021 - 20th August Morning Shift
23

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

AP EAPCET 2021 - 19th August Morning Shift Chemistry - p-Block Elements Question 24 English

AP EAPCET 2021 - 19th August Morning Shift
24

Match the following compounds with their corresponding physical properties.

Column I Column II
A. $$\mathrm{IBr}$$ 1. Orange solid
B. $$\mathrm{CIF}_3$$ 2. Yellow-green liquid
C. $$\mathrm{BrF}_3$$ 3. Black solid
D. $$\mathrm{ICl}_3$$ 4. Colourless gas

AP EAPCET 2021 - 19th August Morning Shift
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12