क्रायोलाइट निम्नलिखित में से किस धातु का एक प्रमुख अयस्क (Ore) है?

The metal which will NOT displace lead from its salt solution is:

When we pour acetone (nail polish remover) on our palm, we feel cold because:

Which of the following allotropes of carbon conducts electricity?

Which of the following is an example of a basic salt?

Which of the following statements is correct regarding the 'property of Gaseous state'?

Which property is shown by ethanol?

Which of the following statements accurately describes the chemical element Astatine?

Which of the following metals reacts most vigorously with cold water?