The wire of flash bulb is made of:
1). Copper
2). Barium
3). Magnesium
4). Silver
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1. Which among the following elements is a liquid at room temperature?
2. The purest form of Iron is :
3. The nucleus of a hydrogen atom consists of
5. The bleeding of a wound is stopped by the application of ferric chloride because-
7. Question 7.1:Why are pentahalides more covalent than trihalides?
8. The washing machine works on the principle of ____________