Question
State and explain Charles’s law. Determine the value of absolute zero on the Celsius scale from Charles’s law
State and explain Charles’s law. Determine the value of absolute zero on the Celsius scale from Charles’s law. [1+2]
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Question
Show with the help of the structural formula of ethylene that it is an unsaturated hydrocarbon.
Show with the help of the structural formula of ethylene that it is an unsaturated hydrocarbon.
Question
CH₃COOH is an organic compound but NaHCO₃ is not an organic compound; write one reason for each case.
CH₃COOH is an organic compound but NaHCO₃ is not an organic compound; write one reason for each case.
Question
Write two reasons why curd and sour fruits are not kept in copper and brass vessels for a long time
Write two reasons why curd and sour fruits are not kept in copper and brass vessels for a long time
Question
Why does a copper vessel turn green in open air?
Why does a copper vessel turn green in open air?
Question
Write the name of a gas that can be prepared using Kipp’s apparatus. Write the balanced chemical equation for the reaction of preparation of the gas.
Write the name of a gas that can be prepared using Kipp’s apparatus. Write the balanced chemical equation for the reaction of…
Question
Give an example of a solid and a liquid covalent compound.
Give an example of a solid and a liquid covalent compound.
Question
Explain with an example of a suitable ionic compound that its ions do not obey the octet rule.
Explain with an example of a suitable ionic compound that its ions do not obey the octet rule.
Question
Liquid hydrogen chloride is unable to conduct electricity, but molten sodium chloride is able to conduct electricity — explain
Liquid hydrogen chloride is unable to conduct electricity, but molten sodium chloride is able to conduct electricity — explain
Question
The length of a wire having a resistance of 15 ohms is stretched by 20%. If the volume of the wire remains constant after stretching and its cross-section remains uniform throughout, determine the new resistance of the wire.
The length of a wire having a resistance of 15 ohms is stretched by 20%. If the volume of the wire remains…