EASY
Diploma
IMPORTANT
Earn 100

Which of the following is/are formed when a metal oxide reacts with a dilute acid?

I. A metal salt

II. Water

III. Hydrogen gas.

50% studentsanswered this correctly

Important Questions on Acids and Bases

EASY
Diploma
IMPORTANT
An aqueous solution of which of the following reacts with magnesium metal?
EASY
Diploma
IMPORTANT
Which property is characteristic of acids in aqueous solution?
EASY
Diploma
IMPORTANT
A solution of acid A has a pH of 1 and a solution of acid B has a pH of 2. Which statement must be correct?
EASY
Diploma
IMPORTANT
100 cm3 of a NaOH solution of pH 12 is mixed with 900 cm3 of water. What is the pH of the resulting solution?
EASY
Diploma
IMPORTANT
Black coffee has a pH of 5 and toothpaste has a pH of 8. Identify which is more acidic and deduce how many times the H+ is greater in the more acidic product.
EASY
Diploma
IMPORTANT
Determine the pH of the solution resulting when 100 cm3 of 0.50 mol dm-3 HCl aq is mixed with 200 cm3 of 0.10 mol dm-3 NaOH aq.
EASY
Diploma
IMPORTANT
Which 0.10 mol dm-3 solution would have the highest conductivity?
EASY
Diploma
IMPORTANT
A student has equal volumes of 1.0 mol dm-3 sodium hydroxide and ammonia solutions. Which statement about the solutions is correct?