MHT-CET

Some Basic Concepts of Ch question bank (Chemistry)

Practice 168 free MHT-CET Chemistry - Some Basic Concepts of Ch questions with answers and step-by-step solutions.

Q1.

A coordination complex contains $2.6\ \%$ of Mg. Find the number of Mg atoms in $5.0$ g of this sample.
(gram atomic mass of Mg $= 24$ g )

(A)
$1.5 \times 10^{21}$
(B)
$3.26 \times 10^{21}$
(C)
$2.82 \times 10^{21}$
(D)
$4.3 \times 10^{21}$
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Q2.

Calculate the number of atoms in 52 moles of argon.

(A)
$218.8 \times 10^{23}$
(B)
$545.1 \times 10^{23}$
(C)
$313.1 \times 10^{23}$
(D)
$136.3 \times 10^{23}$
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