ICSE chemistry
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Question
Correct the following statements :
A system which can exchange neither matter nor energy with the surroundings is called a closed system.
Solution
A system which can exchange energy not matter with the surroundings is called a closed system.
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Question
Correct the following statements :
Hydrolysis of an isocyanide in the presence of an acid yields primary amine and methyl alcohol.
Solution
Hydrolysis of an isocyanide in the presence of an acid yield primary amine and formic acid
Question
Correct the following statements :
Dissociation of hydrogen sulphide is suppressed in an acidic medium because of neutralization.
Solution
Dissociation of hydrogen sulphide (H2S) is suppressed in acidic medium because of common ion effect.
Question
Correct the following statements :
When tin is treated with cold and very dilute nitric acid, stannic acid is formed.
Solution
When tin is treated with hot and concentrated nitric acid, stannic acid is formed.
Question
Correct the following statements :
Oxidation of sucrose with concentrated nitric acid yields glycerol.
Solution
Oxidation of sucrose with concentrated nitric acid yield oxalic acid.
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Mock Test Series
Mock Test Series