Identification of Salts

PAKTURK INTERNATIONAL SCHOOL & COLLEGES ISLAMABAD SUBJECT:CHEMISTRYMARKS: 25 put right out:10-O Level TIME: 40 Min. ATTEMPT each THE QUESTIONS ON YOUR ANSWERSHEETS WITH NEAT PRESENTATION. Q.No.1:Choose the most suitable answer. 1.An pointless of stretch along sulphuric acrid reacts with both sedimentary atomic number 56 hydroxide and aqueous barium chloride. In what management the two reactions be same? A. a gas is produced. B. an indissoluble salt is produced. C. The final examination examination pH is 7. D. piss is produced. 2.Which salt could be prepared by a method involving crystallization as a final stage? A. barium sulphate B. calcium carbonate C. silver chloride D. sodium treat 3.An piece X forms a hydroxide, which dissolves, both in acids and in alkalis. What could X be? A. aluminium B. calcium C. pig seam D. iron 4.In which reaction is dilute sulphuric acid non behaving as an acid? A. H2SO4 + 2NaOH ((((( Na2SO4 + 2H2O B. H2SO4 + BaCl2 ((((( BaSO4 + 2HCl C. H2SO4 + CuO ((((( CuSO4 + H2O D. H2SO4 + Mg ((((( MgSO4 + H2 5.Which words in the table complete the following description of the preparation of tomentum (II) sulphate? An excess copper (II) oxide was added to dilute sulphuric acid. Th mixture was __1___ to remove the excess of oxide.

The solution was __2___ to ha lf its loudness and then cooled, so that i! t __3___. | |1 |2 |3 | |A |distilled |evaporated |crystallized | |B |distilled |filtered |evaporated | |C |filtered...If you want to get a full essay, order it on our website: OrderEssay.net

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