Science Questions

How many water molecules are present in one formula unit of Copper sulfate (Blue Vitriol)?

Which gas is released when sodium bicarbonate is heated?

The pH of rain water is approximately 5.6. This is due to:

Which of the following is an amphoteric oxide?

Tooth decay starts when the pH of the mouth is lower than:

Which acid is found in tamarind?

What happens to the blue color of copper sulfate crystals on heating?

A solution with pH 1 is:

What is the molarity of H+ ions in a solution with pH 4?

According to the Bronsted-Lowry theory, an acid is:

What is the conjugate base of H2SO4?

Which of the following is a Lewis base?

In the reaction NH3 + H2O -> NH4+ + OH-, water acts as:

Calculate the pH of 0.001 M NaOH solution.

Which of the following is a basic salt?

What is the nature of the solution formed by dissolving NH4Cl in water?

Which of the following is a polyprotic acid?

The pH of a 0.01 M HCl solution is:

Which gas is produced when metals react with concentrated nitric acid (HNO3)?

Which of the following species is amphiprotic?