Chemistry

Which of the following does not affect the rate of a chemical reaction?

A. Addition or presence of a catalyst B. Size of the reacting particles C. The enthalpy change for the reaction…

5 years ago

Which of the following compound is aromatic?

A. Benzene B. Cyclobutane C. Cyclopentane D. Hexane E. Ethene Correct Answer: Option A - Benzene

5 years ago

The reaction represented by the equation NaOH(aq) + HCI(aq) → NaCI(aq) + H2O(l)

A. is a double decomposition B. is a neutralization C. is reversible D. is usually catalyzed E. attains equilibrium after…

5 years ago

The following are uses of sulphur except?

A. manufacture of tetraoxosulphate (VI) acid B. prevention of the growth of fungi C. vulcanization rubber D. manufacture of dyes…

5 years ago

An acid present in proteins is?

A. lactic acid B. amino acid C. propanoic acid D. palmitic acid E. stearic acid Correct Answer: Option B -…

5 years ago

Equilibrium is said to be attained in reversible reaction when?

A. all the reactants have been used up B. all the products have been formed C. there is no further…

5 years ago

The oxidation number of chlorine is + 1 in?

A. KCIO3 B. CI2O7 C. ZnCI2 D. HCI E. NaCIO Correct Answer: Option E - NaCIO

5 years ago

Which of the following is a condition for a spontaneous reaction?

A. ∆H -T is zero B. ∆H-T∆ S is positive C. ∆H-T∆ S is negative D. ∆S is zero E.…

5 years ago

Which of the following statements is not true of tin? it

A. is a p-block element B. is extracted from cassiterite SnO2 C. is used for protecting iron containers from corrosion…

5 years ago