JEE Main 2023 (Online) 31st January Morning Shift | p-Block Elements Question 20 | Chemistry

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JEE Main 2023 (Online) 31st January Morning Shift

MCQ (Single Correct Answer)

-1

The correct order of basicity of oxides of vanadium is

$$\mathrm{V_2O_3 > V_2O_5 > V_2O_4}$$

$$\mathrm{V_2O_3 > V_2O_4 > V_2O_5}$$

$$\mathrm{V_2O_5 > V_2O_4 > V_2O_3}$$

$$\mathrm{V_2O_4 > V_2O_3 > V_2O_5}$$

JEE Main 2023 (Online) 31st January Morning Shift

MCQ (Single Correct Answer)

-1

Identify X, Y and Z in the following reaction. (Equation not balanced)

JEE Main 2023 (Online) 31st January Morning Shift Chemistry - p-Block Elements Question 29 English

$$\mathrm{X}=\mathrm{ClONO}_{2}, \mathrm{Y}=\mathrm{HOCl}, \mathrm{Z}=\mathrm{NO}_{2}$$

$$\mathrm{X}=\mathrm{ClNO}_{3}, \mathrm{Y}=\mathrm{Cl}_{2}, \mathrm{Z}=\mathrm{NO}_{2}$$

$$\mathrm{X}=\mathrm{ClONO}_{2}, \mathrm{Y}=\mathrm{HOCl}, \mathrm{Z}=\mathrm{HNO}_{3}$$

$$\mathrm{X}=\mathrm{ClNO}_{2}, \mathrm{Y}=\mathrm{HCl}, \mathrm{Z}=\mathrm{HNO}_{3}$$

JEE Main 2023 (Online) 30th January Evening Shift

MCQ (Single Correct Answer)

-1

Boric acid is solid, whereas $\mathrm{BF}_3$ is gas at room temperature because of

Strong van der Waal's interaction in Boric acid

Strong covalent bond in $\mathrm{BF}_{3}$

Strong hydrogen bond in Boric acid

Strong ionic bond in Boric acid

JEE Main 2023 (Online) 29th January Evening Shift

MCQ (Single Correct Answer)

-1

The set of correct statements is :

(i) Manganese exhibits +7 oxidation state in its oxide.

(ii) Ruthenium and Osmium exhibit +8 oxidation in their oxides.

(iii) Sc shows +4 oxidation state which is oxidizing in nature.

(iv) Cr shows oxidising nature in +6 oxidation state.

(ii), (iii) and (iv)

(ii) and (iii)

(i) and (iii)

(i), (ii) and (iv)

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