Chemistry

Which of the following statements about intermolecular distances and cohesive forces between gas is correct? They are

A. Both large B. Both negligible C. Constant and negligible D. Large and negligible Correct Answer: Option B B. Both…

6 years ago

When a reaction is endothermic?

A. Enthalpy change, ΔH is negative B. Heat content of a product is less than the heat content of a…

6 years ago

The vapour pressure of a liquid depends on _________?

I. Temperature II. rate of condensation III. Cohesive forces holding the particles together. A. I B. I and II C.…

6 years ago

The general gas equation was deprived from______?

A. Boyle's and Gay Lussac's laws B. Boyle's and Graham's laws C. Boyle's and Charles' laws D. Dalton's atomic theory…

6 years ago

Which of the following trioxonitrate(V) salts would decompose on heating to form a metal?

A. Cu(NO3)2 B. AgNO3 C. Pb(NO3)2 D. KNO3 Correct Answer: Option B B. AgNO3

6 years ago

Which of the following substances when boiled with an aqueous solution of sodium hydroxide would be hydrolyzed?

i. Protein ii. Fat iii. Polythene A. i B. ii C. i and ii D. ii and iii Correct Answer:…

6 years ago

Which of the following oxides is ionic?

A. P4O10 B. MgO C. Al2O3 D. SO2 Correct Answer: Option B B. MgO

6 years ago

The shape of a graphite crystal is?

A. Tetrahedral B. Pyramidal C. Octahedral D. Hexagonal Correct Answer: Option D D. Hexagonal

6 years ago

To which group and period respectively does an element with 15 electrons belong?

A. 3 and 3 B. 3 and 5 C. 5 and 3 D. 5 and 5 Correct Answer: Option C…

6 years ago