निम्नलिखित में से

What is the atomic number of silicon, a component of quartz?

When acid reacts with metal carbonate, _______ is/are formed.

Evaluate these statements regarding calcium carbide's effects and uses:

Statement (I): Calcium carbide releases acetylene gas.

Which of the following substances are ozone-depleting?

Select the correct answer from the code given below.

Which of the following metal has the highest Melting point?

Which alkali metal has the atomic number 3?

How many protons are present in the nucleus of an oxygen atom?

Gunpowder consists of a mixture of:

Which of the following pollutants is the major contributor to photochemical smog?

Which mineral is the ore Of aluminium ?