Dalton predicted
Dalton predicted
Options
(a) law of partial pressure (b) law of multiple proportions (c) law of diffusion (d) law of conservation of mass
Correct Answer:
law of conservation of mass
Explanation:
No explanation […]
Basic Concepts of Chemistry
A bivalent metal has the equivalent weight of 12. The molecular weight
A bivalent metal has the equivalent weight of 12. The molecular weight of its oxide will be
Options
(a) 36 (b) 24 (c) 40 (d) 32
Correct Answer:
40
Explanation:
No explanation available. […]
Mass of 0.1 mole of methane is
Mass of 0.1 mole of methane is
Options
(a) 1.6 g (b) 0.1 g (c) 1 g (d) 16 g
Correct Answer:
16 g
Explanation:
No explanation available. Be the first to write […]
Which of the following undergoes sublimation
Which of the following undergoes sublimation
Options
(a) ZnCl₂ (b) CuCl₂ (c) AgCl (d) NH₄Cl
Correct Answer:
NH₄Cl
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Volume concentration of 1.5 N H₂O₂ is
Volume concentration of 1.5 N H₂O₂ is
Options
(a) 1.5 (b) 4.5 (c) 16.8 (d) 8.4
Correct Answer:
8.4
Explanation:
No explanation available. Be the first to write the explanation for this question […]
One gram mole of a gas at NTP occupies 22.4 L.This facts was derived from
One gram mole of a gas at NTP occupies 22.4 L.This facts was derived from
Options
(a) Law of gaseous volumes (b) Avogadro’s hypothesis (c) Berzelius hypothesis (d) Dalton’s atomic theory
Correct Answer: […]
In a metal oxide, there is 20% oxygen by weight. its equivalent weight is
In a metal oxide, there is 20% oxygen by weight. its equivalent weight is
Options
(a) 64 (b) 32 (c) 72 (d) 40
Correct Answer:
32
Explanation:
No explanation available. Be the first […]
Empirical formula of a compound is CH₂O.If its molecular weight is 180,
Empirical formula of a compound is CH₂O.If its molecular weight is 180,then the molecular formula of the compound is
Options
(a) C₃H₆O₃ (b) C₄H₈O₄ (c) C₆H₁₂O₆ (d) C₅H₁₀O₅
Correct Answer:
C₆H₁₂O₆
Explanation:
No […]
Number of molecules in one litre of water is close to
Number of molecules in one litre of water is close to
Options
(a) 55.5 x 6.023 x 10²³ (b) 18 x 6.023 x 10²³ (c) 18 + 22.4 x 10²³ (d) 1.8 x […]
12 g of an alkaline earth metal gives 14.8 g of its nitride .Atomic weight of the
12 g of an alkaline earth metal gives 14.8 g of its nitride .Atomic weight of the metal is
Options
(a) 12 (b) 20 (c) 40 (d) 14.8
Correct Answer:
40
Explanation:
No […]