State true (✓) or false (✗) Of Metals And Non Metals
State true (✓) or false (✗)
(a) Heat is evolved during ionisation.(b) Solution of glucose in water produces ions.
(c) Dry ammonia has no effect on litmus paper.
(d) Higher is the concentration of H(aq), lower is the pH value.
(e) The concentration of aqueous solutions of acid, base and salt are generally expressed in molarity.
(f) pH of a solution can vary from 0-14.
(g) HC1 is a weak acid.
(h) NaOH is a strong base.
(i) Curd is alkaline in comparison to fresh milk.
(j) pH = + log10[(H3O-]
(k) Distilled water does not conduct electricity.
(l) Analgesics helps to relieve acidity.
Answer:
(a) Heat is evolved during ionisation. - True(✓)
(b) Solution of glucose in water produces ions. False (✗)
(c) Dry ammonia has no effect on litmus paper. (True)✓
(d) Higher is the concentration of H(aq), lower is the pH value.True(✓)
(e) The concentration of aqueous solutions of acid, base and salt are generally expressed in molarity.True(✓)
(f) pH of a solution can vary from 0-14.True(✓)
(g) HC1 is a weak acid. False (✗)
(h) NaOH is a strong base.True(✓)
(i) Curd is alkaline in comparison to fresh milk.False (✗)
(j) pH = + log10[(H3O-] False (✗)
(k) Distilled water does not conduct electricity. True(✓)
(l) Analgesics helps to relieve acidity. False (✗)
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