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What happens when hydrogen sulphide reacts with sodium nitroprusside solution?

Important Questions on Inorganic Chemistry in the Laboratory and in Industry

EASY
Write down the formula of the precipitate formed when H2S gas is passed through an aqueous solution of silver nitrate. 
HARD
The reagent(s) that can selectively precipitate S2- from a mixture of S2- and SO42- in aqueous solution is (are)
MEDIUM

For the following Assertion and Reason, the correct option is

Assertion (A) : When Cu (II) and sulphide ions are mixed, they react together extremely quickly to give a solid.

Reason (R) : The equilibrium constant of Cu2+aq+S2-aqCuSs is high because the solubility product is low.

EASY
To an aqueous solution containing ions such as Al3+,Zn2+,Ca2+,Fe3+,Ni2+,Ba2+ and Cu2+ was added conc. HCl, followed by H2S. The total number of cations precipitated during this reaction is/are :
MEDIUM
What colour is produced when H2S gas is passed through an alkaline aqueous solution of sodium nitroprusside?
EASY
Acidified potassium dichromate is treated with hydrogen sulphide. In the reaction, the oxidation number of chromium
MEDIUM
Which of the following is not formed when H2S reacts with acidic K2Cr2O7 solution ?
MEDIUM
Sodium nitroprusside, when added to an alkaline solution of sulphide ions, produce a
MEDIUM
A sample of water was checked for the suitability for drinking and was subjected to a chemical test. Pure zinc granules and sulphuric acid were added to the water sample. The effervescence that resulted from the reaction was bubbled through a tube containing lead acetate solution. A black precipitate appeared. The outgoing gas was subsequently passed through a heated copper tube, and a black mirror appeared on the wall of the tube. The first and the second black substances, respectively, are:
EASY
A gas has smell like rotten egg and turns lead acetate paper black. The gas is:
HARD
Sodium nitroprusside when added to an alkaline solution of sulphide ions produce a
EASY
Sometimes yellow turbidity appears on passing H2S gas, even in the absence of the second group radicals. This happens because
EASY
Sodium fusion extract of an organic compound produces violet colour when treated with sodium nitroprusside. This indicates the presence of ______.
EASY
The reaction between sulphide ion and sodium nitroprusside is 
HARD
Sodium sulphide on heating with dilute HCl liberates a gas which
HARD

X (Black)dilute H2SO4Y gdilute HNO3Colloidal sulphur.

Identify X.