1
JEE Main 2023 (Online) 31st January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of basicity of oxides of vanadium is

A
$$\mathrm{V_2O_3 > V_2O_5 > V_2O_4}$$
B
$$\mathrm{V_2O_3 > V_2O_4 > V_2O_5}$$
C
$$\mathrm{V_2O_5 > V_2O_4 > V_2O_3}$$
D
$$\mathrm{V_2O_4 > V_2O_3 > V_2O_5}$$
2
JEE Main 2023 (Online) 31st January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

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

A
$$\mathrm{X}=\mathrm{ClONO}_{2}, \mathrm{Y}=\mathrm{HOCl}, \mathrm{Z}=\mathrm{NO}_{2}$$
B
$$\mathrm{X}=\mathrm{ClNO}_{3}, \mathrm{Y}=\mathrm{Cl}_{2}, \mathrm{Z}=\mathrm{NO}_{2}$$
C
$$\mathrm{X}=\mathrm{ClONO}_{2}, \mathrm{Y}=\mathrm{HOCl}, \mathrm{Z}=\mathrm{HNO}_{3}$$
D
$$\mathrm{X}=\mathrm{ClNO}_{2}, \mathrm{Y}=\mathrm{HCl}, \mathrm{Z}=\mathrm{HNO}_{3}$$
3
JEE Main 2023 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Boric acid is solid, whereas $\mathrm{BF}_3$ is gas at room temperature because of
A
Strong van der Waal's interaction in Boric acid
B
Strong covalent bond in $\mathrm{BF}_{3}$
C
Strong hydrogen bond in Boric acid
D
Strong ionic bond in Boric acid
4
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

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.

A
(ii), (iii) and (iv)
B
(ii) and (iii)
C
(i) and (iii)
D
(i), (ii) and (iv)
JEE Main Subjects
EXAM MAP
Joint Entrance Examination
JEE MainJEE AdvancedWB JEEBITSAT
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN