MEDIUM
Earn 100
Molar mass of the salt from and which does not evolve coloured vapours on heating with concentrated is ____ , (Molar mass in )
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Important Questions on Inorganic Qualitative Analysis
HARD
A white precipitate was formed when was added to water extract of an inorganic salt. Further, a gas with characteristic odour was released when the formed white precipitate was dissolved in dilute HCI. The anion present in the inorganic salt is:
MEDIUM
Match List I with List II.
| List-I (Anion) |
List-II (gas evolved on reaction with dil. ) |
||
| (A) | (I) |
Colourless gas which turns lead acetate paper black. |
|
| (B) | (II) |
Colourless gas which turns acidified potassium dichromate solution green. |
|
| (C) | (III) | Brown fumes which turns acidified KI solution containing starch blue. | |
| (D) | (IV) | Colourless gas evolved with brisk effervescence, which turns lime water milky. |
Choose the correct answer from the options given below
MEDIUM
The sodium salt of an organic acid produces effervescence with concentrated . reacts with the acidified aqueous solution to give a white precipitate which decolourises acidic solution of . is
HARD
A test tube contain the acidic radical . If dilute is added in this tube then colourless vapours with smell of vinegar is formed. gives deep red colour on reaction with neutral ferric chloride solution due to the formation of complex ion which decomposed on heating to form (brown-red precipitate). and . respectively are
MEDIUM
A substance on treatment with dil. liberates a colourless gas which produces
(i) Turbidity with baryta water and (ii) turns acidified dichromate solution green.
The reaction indicates the presence of
HARD
A solution of a metal ion, when treated with KI, gives a red precipitate which dissolves in an excess of KI to give a colourless solution. Moreover, the solution of the metal ion on treatment with a solution of cobalt(II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ions is :
HARD
Solution of having smell of burnt sulphur
Solution of
blood red colouration
solution of
HARD
A salt on treatment with dilute gives a pungent smelling gas and a yellow precipitate. The salt gives green flame when tested. The solution gives a yellow precipitate with potassium chromate. The salt is
EASY
Which of the following anions would decolourise acidified solution
HARD
A pale yellow precipitate and a gas with pungent odour are formed on warming dilute hydrochloric acid with an aqueous solution containing :
MEDIUM
Which of the following salt will give white precipitate with the solution containing ions?
MEDIUM
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:
MEDIUM
Soda extract is prepared by
MEDIUM
Experiment of detection of is given below in alkaline medium
Select the correct statement about the experiment.
EASY
Water-soluble mixture white ppt.
Filtrate + (hot and conc.) HNO3 + BaCl2 white ppt. So, the mixture contains
MEDIUM
[X] + H2SO4 → [Y] a colourless gas with an irritating smell
and are, respectively -
EASY
A gas having a pungent odour and a pale yellow precipitate are formed on heating dilute hydrochloric acid with an aqueous solution containing :
HARD
Which of the following mixtures of ions can be separated by using an excess of an NaOH solution ?
HARD
Aqueous solution of KI is used to detect:
MEDIUM
The equivalent masses of when it is titrated with using phenolphthalein and methyl orange separate experiments are
