MEDIUM
Chemistry
IMPORTANT
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The composition of golden spangles is:
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Important Questions on Theoretical Principles of Experimental Chemistry
HARD
Chemistry
IMPORTANT
The gas '' will show which of the following property?
MEDIUM
Chemistry
IMPORTANT
When a salt is heated with dilute and solution, the pink colour of is discharged. The salt is:
MEDIUM
Chemistry
IMPORTANT
The solution of a salt in dilute or acetic acid produces a deep blue colour with the starch iodide solution. The salt contains:
MEDIUM
Chemistry
IMPORTANT
A test tube containing a nitrate, and another containing a bromide and , are treated with concentrated . The reddish brown fumes evolved are passed through water. The water will be coloured by:
MEDIUM
Chemistry
IMPORTANT
An inorganic salt when heated with concentrated , evolves a colourless pungent smelling gas but with concentrated and , evolves a coloured pungent smelling gas which bleaches moist litmus paper. The coloured gas is
MEDIUM
Chemistry
IMPORTANT
The chromyl chloride vapours are dissolved in water and acetic acid, and barium acetate solution is added, then:
MEDIUM
Chemistry
IMPORTANT
When layer containing both, and , is shaken with an excess of chlorine water, the violet colour due to disappears, and a pale yellow colour appears in the solution. The disappearance of violet colour and the appearance of pale yellow colour is due to the formation of
MEDIUM
Chemistry
IMPORTANT
A metal salt solution gives a yellow precipitate with silver nitrate. The precipitate dissolves in dilute nitric acid as well as in dilute ammonia solution. The solution contains:
