Table salt gets moist during rainy season because
1). sodium chloride is hygroscopic
2). sodium chloride is deliquescent
3). (c)(3 ) sodium chloride contains some quantity of sodium iodide
4). sodium chloride contains hygroscopic impurities like magnesium chloride
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1. Which of the following is used as nonstick coating for cooking utensils?
2. Hardest allotrope of carbon is
3. Greenhouse effect is caused by
5. Which of the following elements has the lowest melting point?
6. The graphite rods in the nuclear reactor
7. The wire of flash bulb is made of:
8. Question 3.8:Why do elements in the same group have similar physical and chemical properties?
9. Which is abundant in Gobar gas?
10. Question 5.21:Describe some features of catalysis by zeolites.