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Acid Bases and Salts Part-4


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Q.1 : One drop of methyl orange solution when added to the solution obtained after electrolysis of a concentrated solution of NaCl with Pt electrodes the colour of the solution will turn :
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B:
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D:
Q.2 : The aqueous solution of Na2SO4 will have a pH value :
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B:
C:
D:
Q.3 : What is the chemical formula of Plaster of Paris?
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B:
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D:
Q.4 : The molecular formula of bleaching powder is :
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B:
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D:
Q.5 : Sodium carbonate is also called :
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B:
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D:
Q.6 : Nature of aqueous solution of salt obtained by the reaction of strong acid and strong base is :
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B:
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D:
Q.7 : When hydrated CuSO4 is heated :
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D:
Q.8 : In order to decrease the rate of setting of cement, which compound is mixed in it?
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D:
Q.9 : The chemical compound used by doctors as plaster for supporting fractured bones, so as to put them in right place is :
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B:
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D:
Q.10 : Which of the following is a hydrated salt?
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B:
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D: