1
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is NOT an example of secondary voltaic cell?

A
Lead storage battery
B
Dry cell
C
Nickel-cadmium cell
D
Mercury cell
2
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the number of unpaired electrons in $$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$$ complex?

A
Four
B
Two
C
Zero
D
Six
3
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following methods is used to prepare Grignard reagent?

A
Action of magnesium powder on alkyl halide in aqueous medium
B
Action of magnesium hydroxide on alkyl halide
C
Action of magnesium metal on alkyl halide in presence of dry ether
D
Action of $$\mathrm{MgCl}_2$$ on alkyl halide in presence of dry ether
4
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the density of metal having volume of unit cell $$64 \times 10^{-24} \mathrm{~cm}^3$$ and molar mass of metal $$192 \mathrm{~g} \mathrm{~mol}^{-1}$$ containing 4 particles in unit cell.

A
$$14.92 \mathrm{~g} \mathrm{~cm}^{-3}$$
B
$$16.00 \mathrm{~g} \mathrm{~cm}^{-3}$$
C
$$19.93 \mathrm{~g} \mathrm{~cm}^{-3}$$
D
$$18.00 \mathrm{~g} \mathrm{~cm}^{-3}$$
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