Question : A fuse wire is made of

Option 1: An alloy of tin and copper

Option 2: An alloy of tin and lead

Option 3: An alloy of tin and aluminium

Option 4: An alloy of Nickel and Chromium

Question : Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives

Option 1: copper at the cathode, and oxygen at the anode

Option 2: copper at the anode, and oxygen at the cathode

Option 3: copper at the cathode, and anodes dissolve to give copper

Option 4: hydrogen at the cathode, and oxygen at the anode

Question : Zinc and copper are in the ratio 5 : 3 in 400 gm of an alloy. How much copper (in grams) should be added to make the ratio 5 : 4?

Option 1: 50

Option 2: 66

Option 3: 72

Option 4: 200

Question : Two alloys consist of copper and tin. The copper-to-tin ratio in the first alloy is 1 : 3, and in the second alloy, it is 2 : 5. What ratio should the two alloys be mixed in to create a new alloy with a tin-to-copper ratio of 8 : 3?

Option 1: 3 : 5

Option 2: 4 : 7

Option 3: 3 : 8

Option 4: 5 : 11

Question : Which among the following alloys is made up of copper and zinc?

Option 1: Monel Metal

Option 2: Magnalium

Option 3: Rolled Gold

Option 4: Dutch Metal