NEET 2023 | p-Block Elements Question 5 | Chemistry

NEET 2023

MCQ (Single Correct Answer)

-1

Match List I with List II:

Choose the correct answer from the options given below:

A-III, B-IV, C-I, D-II

A-I, B-III, C-IV, D-II

A-III, B-IV, C-II, D-I

A-I, B-III, C-II, D-IV

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

Match List-I with List-II :

Choose the correct answer from the options given below :

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

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

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

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

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

Which of the following reactions is a part of the large scale industrial preparation of nitric acid?

Cu(NO₃)₂ + 2NO₂ + 2H₂O $$\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{\mathrm{500\,K,\,9\,bar}}^{\mathrm{Pt}}} $$ 4HNO₃ + Cu

NaNO₃ + H₂SO₄ $$\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{\mathrm{500\,K,\,9\,bar}}^{\mathrm{Pt}}} $$ NaHSO₄ + HNO₃

4NH₃ + 5O₂ (from air) $$\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{\mathrm{500\,K,\,9\,bar}}^{\mathrm{Pt}}} $$ 4NO + 6H₂O

4HPO₃ + 2N₂O₅ $$\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{\mathrm{500\,K,\,9\,bar}}^{\mathrm{Pt}}} $$ 4HNO₃ + P₄O₁₀

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

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