NEET 2019 | p-Block Elements Question 20 | Chemistry

NEET 2019

MCQ (Single Correct Answer)

-1

Which of the following species is not stable?

[Sn(OH)₆]^2-

[SiCl₆]^2–

[SiF₆]^2–

[GeCl₆]^2–

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

Identify the incorrect statement related to PCl₅ from the following :

Axial P–Cl bonds are longer than equatorial P–Cl bonds

PCl₅ molecule is non-reactive

Three equatorial P–Cl bonds make an angle of 120º with each other

Two axial P–Cl bonds make an angle of 180º with each other

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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