Question : Which of the following are the main components of stainless steel?

Option 1: Iron and carbon

Option 2: Silver

Option 3: Iron, chromium and nickel

Option 4: Iron and nickel

Question : Which of the following metals is the heaviest?

Option 1: Iron

Option 2: Silver

Option 3: Nickel

Option 4: Osmium

Question : The lead chromate which is toxic and carcinogenic, is used for the adulteration of ____________powder.

Option 1: Chili

Option 2: Garlic

Option 3: Turmeric

Option 4: Ginger

Question : Which of the following statements is not correct regarding the alkali metals?

Option 1: All the alkali metals are silvery white, soft and light metals.

Option 2: The ionisation enthalpies of the alkali metals are considerably low and decrease down the group.

Option 3: Group 1 metals are known as alkali metals.

Option 4: All the alkali metals have two valence electrons.

Question : Which of the following is a major component of water pollution in the Bengal Basin?

Option 1: Chromium

Option 2: Arsenic

Option 3: Calcium

Option 4: Potassium