Basic Chemistry Questions and Answers

Basic Chemistry Questions and Answers

1-Which of the following sugars is the sweetest?

(A) Glucose

(B) Fructose

(C) Sucrose

(D) Lactose

 

2-Gun powder, which is an explosive comprises of

(A) Charcoal

(B) Sulphur

(C) Salt petre

(D) All of the above

 

3-A study of relationships between organisms and their environment is:

(A) Ethnology

(B) Ecology

(C) Monospecific

(D) Monoecious

 

4-In a nuclear process, the quantity conserved is:

(A) Mass + energy

(B) Momentum

(C) Mass only

(D) Energy only

 

5-Nucleon number consist of:

(A) Number of electrons

(B) Number of protons

(C) Number of electrons and protons

(D) Number of protons and neutrons

 

6-The natural source of radiation, which most people are exposed to, is following except:

(A) Cosmic rays

(B) Terrestrial radiation

(C) Atmospheric radiation

(D) X-rays

 

7-What is the full form of ‘LASER’?

(A) Light Absorption and Stimulated Emission of Radiation

(B) Light Amplification by Successive Emission of Radiation

(C) Light Amplification by Stimulated Emission of Radiation

(D) Light Amplification and Spontaneous Emission of Radiation

 

8-Sea water can be purified by the process of:

(A) Evaporation

(B) Filtration

(C) Distillation

(D) Fractional distillation

 

9-The number of chromosomes in human is:

(A) 44

(B) 40

(C) 46

(D) 48

 

10-Human skeleton consist of how many bones?

(A) 180

(B) 190

(C) 196

(D) 206

 

ANSWERS:

1-(B), 2-(D), 3-(B), 4-(A), 5-(D), 6-(D), 7-(C), 8-(C), 9-(C), 10-(D)