Science Questions

What volume of CO2 is produced at STP when 10g of CaCO3 is heated? (Ca=40, C=12, O=16)

Identify the conjugate base of H2SO4.

Which of the following is a redox reaction?

What is the valency of Iron in Ferric Chloride?

What happens in a disproportionation reaction?

Which substance is a liquid catalyst?

How many molecules of water are present in 180g of water?

In an exothermic reaction, the enthalpy of products is:

What is the catalyst used in the hydrogenation of vegetable oils?

Which of the following is an example of an addition reaction?

What is the valency of the Nitrogen atom in the Ammonium ion (NH4+)?

During the electrolysis of water, the ratio of hydrogen to oxygen by volume is:

Which of the following describes the 'Contact Process'?

What is the effect of an inhibitor in a chemical reaction?

Which of the following is a salt of a strong acid and a weak base?

What is the oxidation number of Cr in K2Cr2O7?

Identify the oxidant in the reaction: H2S + HNO3 -> NO2 + S + H2O.

What is the molecular mass of Calcium Carbonate? (Ca=40, C=12, O=16)

Which of the following is a physical property changed during a chemical reaction?

Which of the following is the most abundant metal in the Earth's crust?