The element used in the manufacture of safety matches is
1). Phosphorous
2). Magnesium
3). Silicon
4). Sulphur
Answer This Question with Explaination and Earn! Click Here to Know More!
2. The important ore of aluminium is
3. The coloured discharge tubes foradvertisement mainly contain
4. Which of the following substance is highly plastic ?
5. The metal does not give H2 on treatment with dilute HCL is
6. Beryllium Sulphate is less soluble in water due to ?
7. The wire of flash bulb is made of: