When a spoon is to be electroplated with nickel the spoon is
1). dipped in a nickel sulphate solution
2). made anode and a pure nickel rod the cathode
3). made cathode and a pure nickel red the anode
4). coated with nickel sulphate and dried
1. Galvanization of iron is carried out using
2. Element 106 was discovered by
3. The first metal used by a man was
4. The gas which is mainly responsible for the greenhouse effect is:
5. The minimum energy required for an effective collision is
6. Which of the following is the strongest base in aqueous solution ?
7. Question 5.21:Describe some features of catalysis by zeolites.
8. The metal that is usually extracted from sea water is