Chemistry

Which of the following salts when dissolved in water will form a solution that will change blue litmus to red?

A. CH3COONa B. NH4Cl C. NaCl D. KCl Correct Answer: Option B B. NH4Cl

6 years ago

Which of the following factors will affect the rate of the reaction represented by the following equation?

2HCl(aq) + CaCO3(s) → CaCl2(aq) + H2O(1) + CO2(g) I. Pressure II.Concentration III. Nature of reactants IV. Temperature A. I…

6 years ago

The refreshing characteristic taste of fizzy drinks is due to the presence of?

A. Carbon(IV)oxide B. Glucose C. Hydrogen D. Sodium Citrate Correct Answer: Option A A. Carbon(IV)oxide

6 years ago

Chemical equilibrium is attained when?

A. All the reactants have been completely used up B. The reaction goes to completion C. The concentration of reactants…

6 years ago

Consider the following reaction equation: H3O³+(aq) + OH(aq) → 2H2O(l).. The reaction represents

H3O³+(aq) + OH(aq) → 2H2O(l) A. Esterification B. Hydrolysis C. Neutralization D. Redox Correct Answer: Option C C. Neutralization

6 years ago

The pH of four solutions M,N,Q and R are 2,6,8 and 11 respectively. Which of the following deductions about the solutions is correct?

A. The pH of N is increased when the solution is diluted B. The pH of Q is increased when…

6 years ago

When NH4Cl(s) is dissolved in water, the container feels cold to touch. This implies?

A. The process is endothermic B. The process is exothermic C. NH4Cl forms a saturated solution D. NH4Cl is highly…

6 years ago

An aqueous solution of (NH4)2SO4 is?

(NH4)2 SO4 A. Acidic B. Alkaline C. Amphoteric D. Neutral Correct Answer: Option A A. Acidic

6 years ago

The energy which accompanies the addition of an electron to an isolated gaseous atom is?

A. Atomization B. Electronegativity C. Electron affinity D. Ionization Correct Answer: Option C C. Electron affinity

6 years ago

Propane carbon(IV)oxide diffuse at the same rate because [H = 1.00, C = 12.0, O = 16.0]

A. They are both gases B. Their molecules contain carbon C. They have the same relative molecular mass D. Both…

6 years ago