JAMB Past Questions and Answers - Page 1247

6,231.

Which of the following is an item in the debit side of the sales ledger control account?

A.

Interest charged by suppliers

B.

Bills receivable honored

C.

Transfer of credit balances from credit control account

D.

Transfer of debit balance from creditors control account

Correct answer is A

Recall sales ledger control account are used to track trade debtors, that is goods sold on credit. We already know that we debit all income and credit expenses. The debit side of the account contains interest charged by suppliers because the goods were sold on credit and its considered an income.

 

6,232.

Liquid black soap is made by boiling palm oil with liquid extract of ash. The function of the ash is to provide the ?

A.

Acid

B.

Ester of alkanoic acid

C.

Alkali

D.

Alkanol

Correct answer is C

lye is a metal hydroxide traditionally obtained by leaching wood ashes, or a strong alkali which is highly soluble in water producing caustic basic solutions / an alkaline solution that is used to make soaps. "Lye" most commonly refers to sodium hydroxide (NaOH), but historically has been used for potassium hydroxide (KOH).

6,233.

Which of the following is a debit item in the purchases ledger control account?

A.

Balance b/d

B.

Cheque dishonoured

C.

Purchases

D.

Balance c/d

Correct answer is D

No explanation has been provided for this answer.

6,234.

Which of the gas laws does this graph illustrate?

A.

Boyle

B.

Charles

C.

Gay-Lussac

D.

Graham

Correct answer is B

Charles' law describes the effect of temperature changes on the volume of a given mass of gas at a constant pressure.

6,235.

The best treatment for a student who accidentally poured conc tetraoxosulphate(vi) on his skin in the laboratory is to wash his skin with?

A.

with cool running water

B.

sodium hydroxide solution

C.

iodine solution

D.

sodium trioxonitrate(v) solution

Correct answer is A

  • Sulfuric acid is flushed with a mild, soapy solution if the burns are not severe. Sulfuric acid feels hot when water is added to the acid, but it is better to flush the area and not leave the acid on the skin.
  • Don't try to neutralize the burn with acid or alkali. This could cause a chemical reaction that worsens the burn.