Chemistry 10th Class English Medium Online Test With Answers

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Chemistry 10th Class English Medium Online Test

Sr. # Questions Answers Choice
1 The number of carbon atoms present in petroleum ether. 1-5 2-5 3-7 5-7
2 The number of carbon atoms present in petroleum gas. 1-2 1-3 1-4 1-5
3 Formula of Urea is. KCNO H<sub>2</sub>N-CO-NH<sub>2</sub> HN-CO<sub>2</sub>-NH H<sub>3</sub>N-CO-NH<sub>3</sub>
4 How many % age of urea is used as fertilizers? 80% 90% 95% 98%
5 How many % age of nitrogen present in air by volume? 70% 75% 78% 80%
6 Ammonia is prepared by the process . Ostwald Haber Clark All
7 The raw materials for the manufacturing of urea are. Ammonia Carbondioxide Limestone a &amp; b
8 How many % age of nitrogen in urea fertilizers? 40.6 45.6 46.6 50
9 Sindh alkalies limited was established near Karachi in. 1965 1966 1970 2000
10 Imperial chemical industries was established in. 1942 1944 1950 1990
11 Formula of soda ash is. Na<sub>2</sub>CO<sub>3</sub> NaHCO<sub>3</sub> Na<sub>2</sub>SO<sub>4</sub> Na<sub>3</sub>PO<sub>4</sub>
12 Formula of baking soda is. Na<sub>2</sub>CO<sub>3</sub> NaHCO<sub>3</sub> Na<sub>2</sub>SO<sub>4</sub> Na<sub>2</sub>PO<sub>4</sub>
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