Mole Concept, Molar Mass NEET Questions

Physical Chemistry - Some Basic Concepts of Chemistry

Mole Concept, Molar Mass MCQ Questions


13.
The molecular mass of ammonia (NH₃) is:
A.
16 g/mol
B.
17 g/mol
C.
18 g/mol
D.
20 g/mol
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ANSWER :
C. 18 g/mol
14.
What is the molar mass of calcium chloride (CaCl₂)?
A.
110 g/mol
B.
111 g/mol
C.
112 g/mol
D.
114 g/mol
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ANSWER :
D. 114 g/mol
15.
How many grams are present in 2 moles of glucose (C₆H₁₂O₆)?
A.
180 g
B.
360 g
C.
90 g
D.
60 g
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ANSWER :
B. 360 g
16.
Which has more number of atoms: 1 mole of O₂ or 1 mole of H₂?
A.
Same
B.
H₂
C.
O₂
D.
O₂ has more
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ANSWER :
C. O₂
17.
The molar mass of aluminum sulfate [Al₂(SO₄)₃] is:
A.
200 g/mol
B.
342 g/mol
C.
342.5 g/mol
D.
350 g/mol
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ANSWER :
A. 200 g/mol
18.
How many atoms are in 3 moles of carbon?
A.
1.806 × 10²⁴
B.
3.011 × 10²³
C.
2.408 × 10²³
D.
6.022 × 10²³
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ANSWER :
B. 3.011 × 10²³