Chemistry Questions

Baking soda is used ______.

I. for making baking powder

II. in soda-acid fire extinguishers

III. to neutralize excess acid in the stomach

Which of the following statements are CORRECT?

I. Melamine is a Thermo setting plastic.

II. It resists fire.

III It is a poor conductor of heat.

Carbon dioxide is one of the gases that cause the _________.

Which one of the following is commonly used as an indicator to measure the exact pH?

Which one of the following mixture is homogeneous?

Out of all known elements, the minimum number is of ______.

Which of the following statement(s) is/are INCORRECT?

I. Alkenes are fairly unreactive.

II. Alkenes burn with blue flame.

III. Alkanes burn with yellow flame.

Which of the following statements about the reaction below are INCORRECT?

2Pb + C → 2Pb + CO2

A. Carbon di-oxide is getting, oxidised
B. Lead is getting reduced
C. Carbon is oxidised
D. Lead oxide is getting reduced