Chemistry
State the terms for the following:
(a) The group obtained by removing one hydrogen atom from the parent alkane.
(b) Two metal plates or wires through which the current enters and leaves the electrolytic cell.
(c) The amount of substance which contains the same number of units as the number of atoms in carbon-12.
(d) The tendency of an atom to pull a shared pair of electrons towards itself in a compound.
(e) The formula which represents the simplest ratio between the atoms of elements present in a compound.
Organic Chemistry
ICSE 2024
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Answer
(a) Alkyl group
(b) Electrodes
(c) Mole
(d) Electronegativity
(e) Empirical formula
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Match the Column A with Column B:
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(b) Draw the structural diagram for the following organic compounds:
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- propyne
- methanal
Rewrite the following statements by adding the correct word as shown in the example:
Example:
Given Statement: Ammonia changes moist red litmus to blue.
Correct Statement: Aqueous ammonia changes moist red litmus to blue.
(a) Sulphuric acid acts as a dehydrating agent.
(b) Ammonia reacts with chlorine to give ammonium chloride and nitrogen.