Which of the following doesnt give a ppt. with silver nitrate solution?
A white crystalline salt A reacts with dilute HCl to liberate a suffocating gas B and also forms a yellow precipitate. The gas B t..
0.2595g of an organic substance in a quantitative analysis yielded 0.35g of the barium sulphate. The percentage of sulphur in the ..
A salt of NaX Mgcl/ white ppt. on boiling. thus,
When H2S gas is passed in a metal sulphate solution in presence of NH4OH, a white precipitate is produced. The metal is identified..
A white-coloured inorganic compound, on heating, gives a gas which turns lime water milky and residue is left which is yellow when..
a ref solid is insoluble in water. however it becomes
Which of the following pair of the species has the same percentage of carbon
the aqueous solution of which Salt is colored?
a gas "X" is passed through water to from a saturated solution.
29.5 mg of organic compound containing nitrogen was
If a compound on analysis was found to contain C = 18.5%, h
H = 1.55%, CL = 55.04% and O = 24.81%, then its empirical formula is
The best method for the separation of naphthalene and benzoic acid from their mixture is
Which of the following sulphides is yellow in colour ?
Brown ring is made for
In Kjeldahls method, CuSO4 acts as
Which one of the following metallic hydroxides does not dissolve in sodium hydroxide solution?
A mixture of camphor and benzoic acid can be separated by
A violet colour compound formed in detection of S in a compound is
Black precipitates form in many metal ion solutions, then which anion is used as a precipitating agent?
How will you separate a solution (miscible) of benzene +CHCL3
The principle involved in the classification of basic radicals, is
An organic compound contains C = 38.8%, H = 16% and N = 45.2% . Empirical formula of the compound is
60g of a compound on analysis gave C = 24g, H = 4g and O = 32g. Its Empirical formula is
Which of the following radicals gives the apple green flame during flame test ?
MnO2 and H2SO4 added to NaCl, the greenish-yellow gas liberated is
Fe (oh)3 can be separated from al (oh)3 by addition of
The yellow precipitate formed during the chromyl chloride test is chemically
Silver chloride dissolves in aqueous ammonia due to formation of
The decomposition of organic compounds in the presence of oxygen and without formation of odoriferous substances, is called
Borax bead test of Cr (chromium) is
What colour is imparted into the flame when lithium is burnt?
which of the following is the wrong statement?
A solution of metal ion when treated with Kl, gives a red
passing H2S gas into a mixture of Mn^2+, Ni^2+, Cu^2+, and
Upon treatment with ammoniacal H2S, the metal ion solutions that precipitates as a sulphide is
The incorrect statement in respect of chromyl chloride test is
In the brown ring test, the brown colour of the ring is due to
In borax bead test, the coloured ions give characteristic coloured beads due to the formation of
In Nesslers reagent for the detection of ammonia the active species is
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