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

Consider the following reaction

JEE Main 2023 (Online) 31st January Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 40 English

The correct statement for product B is. It is

A
racemic mixture and is neutral
B
optically active and adds one mole of bromine
C
racemic mixture and gives a gas with saturated $$\mathrm{NaHCO}_{3}$$ solution
D
optically active alcohol and is neutral
2
JEE Main 2023 (Online) 31st January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

$$\mathrm{Nd^{2+}}$$ = __________

A
$$\mathrm{4f^4 6s^2}$$
B
$$\mathrm{4f^3}$$
C
$$\mathrm{4f^4}$$
D
$$\mathrm{4f^2 6s^2}$$
3
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
$$\mathrm{V_2O_4 > V_2O_3 > V_2O_5}$$
4
JEE Main 2023 (Online) 31st January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct increasing order of the ionic radii is

A
$$\mathrm{Cl^- < Ca^{2+} < K^+ < S^{2-}}$$
B
$$\mathrm{K^+ < S^{2-} < Ca^{2+} < Cl^-}$$
C
$$\mathrm{Ca^{2+} < K^+ < Cl^- < S^{2-}}$$
D
$$\mathrm{S^{2-} < Cl^- < Ca^{2+} < K^+}$$
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