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प्रश्न
From the list given below, select the word(s) required to correctly complete the blanks (i) to (v) in the following passage:
Ammonia, Ammonium, Carbonate, Carbon dioxide, Hydrogen, Hydronium, Hydroxide, Precipitate, Salt, Water.
A solution ‘X’ turns blue litmus red so it must contain (i) ______ ions; another solution ‘Y’ turns red litmus blue and therefore must contain (ii) ______ ions. When solutions X and Y are mixed together, the products will be a (iii) ______ and (iv) ______. If a piece of magnesium was put into solution X, (v) ______ gas would be evolved.
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उत्तर
A solution ‘X’ turns blue litmus red so it must contain (i) hydronium ions; another solution ‘Y’ turns red litmus blue and therefore must contain (ii) hydroxide ions. When solutions X and Y are mixed together, the products will be a (iii) salt and (iv) water. If a piece of magnesium was put into solution X, (v) hydrogen gas would be evolved.
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संबंधित प्रश्न
Identify the anion present in the following compounds:
A salt D on treatment with dilute sulphuric acid produces a gas which turns lime water milky but has no effect on acidified potassium dichromate solution
Identify the anion present in the following compounds:
When barium chloride solution is added to salt solution E a white precipitate insoluble in dilute hydrochloric acid is obtained.
Name the kind of particles present in carbonic acid.
Define in term of ionization an alkali?
Give one example : A weak mineral acid.
Give one example : An oxide which is a base.
The preparation of lead sulphate from lead carbonate is a two step process (lead sulphate cannot be prepared by adding dilute sulphuric acid to lead carbonate.)
Write the equation for the reaction that will take place when this first step is carried out.
What is the term defined below?
A base which is soluble in water.
From the list of the following salts choose the salt that most appropriately fits the description given in the following :
[ AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2 ]
(i) A deliquescent salt
(ii) An insoluble chloride
(iii) On heating this salt gives a yellow residue when hot and white when cold
(iv) On heating this salt, a brown coloured to prepare the following salts:
The preparation of Lead sulphate from Lead carbonate is a two-step process. (Lead sulphate cannot be prepared by adding dilute Sulphuric acid to Lead carbonate.)
What is the first step that is required to prepare Lead sulphate from Lead carbonate?
