Test Preparation on p-block Elements-III-Chemistry Test Series For NEET-2020

Glass reacts with HF to produce

(a) SiF₄       (b) H₂SiF₆
(c) H₂SiO₃   (d) Na₃ AlF₆

Which of the statements given below is incorrect

(a) Cl₂O₇ is an anhydride of perchloric acid
(b) O₃ molecule is bent
(c) ONF is isoelectronic with O₂N^-
(d) OF₂ is an oxide of fluorine

Chlorine is used in water for

Bromine is liberated when an aqueous solution of potassium
bromide is treated with

(a) Cl₂                 (b) I₂
(c) Dilute H₂SO₄   (d) SO₂