The ore of aluminium is

• chalco pyrites

• fluorspar

• hematite

• bauxite

State Bank of India was previously known as

• Co-operative Bank of India

• Canara Bank

• Imperial Bank of India

• Syndicate Bank

Waksman got the Noble prize for the discovery of

• streptomycin

• nemoycin

• penicillin

• chloromycetin

The dynamo converts

• mechanical energy into magnetic energy

• mechanical energy into electrical energy

• electrical energy into mechanical energy

• None of the above

Spring tides occur on

• the day when the Moon's position is in its first

• new Moon day only

• full Moon day as well as on new Moon day

• full Moon day only