DPP – 9S21

DPP – 9S21 IS MATTER AROUND US PURE?   Q1. Difference between pure and impure, element and compound, compound and mixture?   Q2. Which of the following materials fall into the category of “pure substance”?   (a) Ice (b) Milk (c) Iron (d) Hydrochloric acid (e) Calcium oxide (f) Mercury (g) Brick (e) Wood (f) […]

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DPP – 10S22 PROPERTIES OF ACIDS AND BASES

DPP -10S22 PROPERTIES OF ACIDS AND BASES Q1. Complete the Reaction : (i) 𝑍𝑛 + 𝐻2𝑆𝑂4 → (ii) 𝐴𝑙 + 𝐻𝑁𝑂3 → (iii) 𝐻𝐶𝑙 + 𝐾2𝑂 → (iv) 𝐻𝐶𝑙 + 𝐴𝑙2(𝐶𝑂3)3 → (v) 𝐻𝐶𝑙 + 𝐹𝑒(𝐼𝐼) → (vi) 𝑁𝑎𝑂𝐻 + 𝑍𝑛 → (vii) 𝑁𝑎𝑂𝐻 + 𝐻2𝑆𝑂4 → (viii) 𝐻𝐶𝑙 + 𝑀𝑔 → (ix) 𝑁𝑎𝐻𝐶𝑂3 +

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