JEE Main 2017 (Online) 8th April Morning Slot | p-Block Elements Question 201 | Chemistry

A metal ‘M’ reacts with nitrogen gas to afford ‘M₃N’. ‘M₃N’ on heating at high temperature gives back ‘M’ and on reaction with water produces a gas ‘B’. Gas ‘B’ reacts with aqueous solution of CuSO₄ to form a deep blue compound. ‘M’ and ‘B’ respectively are :

Li and NH₃

Ba and N₂

Na and NH₃

Al and N₂

JEE Main 2017 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)

-1

Out of Syllabus

The number of S = O and S − OH bonds present in peroxodisulphuric acid and pyrosulphuric acid respectively are :

(2 and 2) and (2 and 2)

(2 and 4) and (2 and 4)

(4 and 2) and (2 and 4)

(4 and 2) and (4 and 2)

JEE Main 2017 (Offline)

MCQ (Single Correct Answer)

-1

Out of Syllabus

The products obtained when chlorine gas reacts with cold and dilute aqueous NaOH are :

Cl^- and $$ClO_2^ - $$

ClO^- and $$ClO_3^ - $$

Cl^- and ClO^-

$$ClO_2^ - $$ and $$ClO_3^ - $$

JEE Main 2016 (Online) 10th April Morning Slot

MCQ (Single Correct Answer)

-1

Out of Syllabus

Assertion : Among the carbon allotropes, diamond is an insulator, whereas, graphite is a good conductor of electricity.

Reason : Hybridization of carbon in diamond and graphite are sp³ and sp², respectively.

Both assertion and reason are correct, and the reason is the correct explanation for the assertion.

Both assertion and reason are correct, but the reason is not the correct explanation for the assertion

Assertion is incorrect statement, but the reason is correct.

Both assertion and reason are incorrect.

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