NEET 2022 Phase 2 | p-Block Elements Question 12 | Chemistry

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

Na₂B₄O₇ $$\buildrel {heat} \over \longrightarrow $$ X + NaBO₂

in the above reaction the product "X" is :

NaB₃O₅

H₃BO₃

B₂O₃

Na₂B₂O₅

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

Match List-I with List-II.

Choose the correct answer from the options given below:

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

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

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

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

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

Which of the following statement is not correct about diborane?

There are two 3-centre-2-eletron bonds.

The four terminal B-H bonds are two centre two electron bonds.

The four terminal Hydrogen atoms and the two Boron atoms lie in one plane.

Both the Boron atoms are sp² hybridised.

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

Given below are two statements

Statement I : The boiling points of the following hydrides of group 16 elements increases in the order -

H₂O < H₂S < H₂Se < H₂Te

Statement II : The boiling points of these hydrides increase with increase in molar mass.

In the light of the above statements, choose the most appropriate answer from the options given below :

Both Statement I and Statement II are correct

Both Statement I and Statement II are incorrect

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

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