1
JEE Main 2023 (Online) 11th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

If $$\mathrm{Ni}^{2+}$$ is replaced by $$\mathrm{Pt}^{2+}$$ in the complex $$\left[\mathrm{NiCl}_{2} \mathrm{Br}_{2}\right]^{2-}$$, which of the following properties are expected to get changed ?

A. Geometry

B. Geometrical isomerism

C. Optical isomerism

D. Magnetic properties

A
A and D
B
A, B and D
C
A, B and C
D
B and C
2
JEE Main 2023 (Online) 11th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Which of the following compounds is an example of Freon?

A
$$\mathrm{C}_{2} \mathrm{H}_{2} \mathrm{F}_{2}$$
B
$$\mathrm{C}_{2} \mathrm{HF}_{3}$$
C
$$\mathrm{C}_{2} \mathrm{F}_{4}$$
D
$$\mathrm{C}_{2} \mathrm{Cl}_{2} \mathrm{F}_{2}$$
3
JEE Main 2023 (Online) 11th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : A solution of the product obtained by heating a mole of glycine with a mole of chlorine in presence of red phosphorous generates chiral carbon atom.

Reason R : A molecule with 2 chiral carbons is always optically active.

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

A
Both A and R are true and R is the correct explanation of A
B
Both A and R are true but R is NOT the correct explanation of A
C
A is true but R is false
D
A is false but R is true
4
JEE Main 2023 (Online) 11th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I
Complex
LIST II
Colour
A. $$Mg(N{H_4})P{O_4}$$ I. brown
B. $${K_3}[Co{(N{O_2})_6}]$$ II. white
C. $$MnO{(OH)_2}$$ III. yellow
D. $$F{e_4}{[Fe{(CN)_6}]_3}$$ IV. blue

Choose the correct answer from the options given below :

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