Chemistry
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.
Sulphuric Acid
ICSE 2024
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Answer
(a) Concentrated sulphuric acid acts as a dehydrating agent.
(b) Excess of ammonia reacts with chlorine to give ammonium chloride and nitrogen.
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Related Questions
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.
(a) Give the IUPAC names of the organic compounds represented by the structural formulae given below:
(b) Draw the structural diagram for the following organic compounds:
- 3-methyl pentane
- propyne
- methanal
Identify only the anion present in the following compound:
(a) The compound on heating produces a colourless, odourless gas which turns lime water milky and has no effect on acidified potassium dichromate solution.
(b) The solution of the compound which on treating with concentrated sulphuric acid and freshly prepared ferrous sulphate solution produces a brown ring.
Mohan has three solutions P, Q and R having a pH of 13, 5 and 2 respectively. Which of the above solutions P, Q or R:
(a) will react with Magnesium to liberate hydrogen gas?
(b) will liberate ammonia gas when it reacts with ammonium chloride?
(c) will contain molecules as well as ions?