NEET 2020 Phase 1 | p-Block Elements Question 21 | Chemistry

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

Identify the correct statements from the following :
(A) CO₂(g) is used as refrigerant for ice-cream and frozen food.
(B) The structure of C₆₀ contains twelve six-carbon rings and twenty five carbon rings.
(C) ZSM-5, a type of zeolite, is used to convert alcohols into gasoline.
(D) CO is colourless and odourless gas.

(A) and (C) only

(B) and (C) only

(A), (B) and (C) only

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

Which of the following oxoacid of sulphur has $$ - $$ O$$ - $$ O$$ - $$ linkage?

H₂SO₄, sulphuric acid

H₂S₂O₈, peroxodisulphuric acid

H₂S₂O₇, pyrosulphuric acid

H₂SO₃, sulphurious acid

NEET 2019

MCQ (Single Correct Answer)

-1

Which is the correct thermal stability order for H₂E (E = O, S, Se, Te and Po)?

H₂Po < H₂Te < H₂Se < H₂S < H₂O

H₂Se < H₂Te < H₂Po < H₂O < H₂S

H₂S < H₂O < H₂Se < H₂Te < H₂Po

H₂O < H₂S < H₂Se < H₂Te < H₂Po

NEET 2019

MCQ (Single Correct Answer)

-1

Match the following :

(a) Pure nitrogen	(i) Chlorine
(b) Haber process	(ii) Sulphuric acid
(c) Contact process	(iii) Ammonia
(d) Deacon’s process	(iv) Sodium azide or Barium azide

Which of the following is the correct option?

(a)	(b)	(c)	(d)
(iii)	(iv)	(ii)	(i)

(a)	(b)	(c)	(d)
(iv)	(iii)	(ii)	(i)

(a)	(b)	(c)	(d)
(i)	(ii)	(iii)	(iv)

(a)	(b)	(c)	(d)
(ii)	(iv)	(i)	(iii)

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