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(d) A clear solution is formed
(d) Vinegar
(b) Coâ‚‚
(c) I and III
(c) Na ₂CO₃
(b) More than 7
(d) All the above
(c) Rain water
(d) -CHO
(a) hydrophilic head and hydrophilic tail
5 ml of dilute acid were added to 5 ml of water and the mixture was shaken for one minute. It was observed that-
(d) A clear solution is formed
(d) A clear solution is formed
See lessThe about of ethanoic acid resembles with
(d) Vinegar
(d) Vinegar
See lessWhen sodium bicarbonate is added to test tube containing acetic acid, a colourless is produced with brisk effervence. Identify the gas-
(b) Coâ‚‚
(b) Coâ‚‚
See lessA student performed experiments to study properties of acetic acid. His observations were as follows-(i) Acetic acid is colourless liquid (ii) Acetic acid has fruity smell (iii) It changes blue litmus to red. (iv) When reacted with sodium bicarbonate, it produces hydrogen gas. Identify the correct observation
(c) I and III
(c) I and III
See lessTemporary hardness of water can be removed by use of
(c) Na ₂CO₃
(c) Na ₂CO₃
See lesspH value of soap solution is
(b) More than 7
(b) More than 7
See lessHardness of water is due presence of salt
(d) All the above
(d) All the above
See lessThe cleaning capacity of soap is maximum in
(c) Rain water
(c) Rain water
See lessThe functional group present in Propanal is
(d) -CHO
(d) -CHO
See lessThe soap molecule has a
(a) hydrophilic head and hydrophilic tail
(a) hydrophilic head and hydrophilic tail
See less