Physical Science

Correct Answer: A

Elements are made of Atoms. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: A

Elements which have same number of protons but different number of neutrons are called as Isotopes. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Endothermic reactions are those in which Heat is absorbed. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

Enzymes are organic catalysts made up of: Proteins. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

Enzymes are organic catalysts made up of Proteins. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

For glavinizing of iron which of the following metals is used: Zinc. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: C

Fuel used in a Fast Breeder Reactor is Uranium Plutonium Oxide. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

Gold and Silver are known as Both A & B metals. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: D

Heating element of an electric heater is made up of Nichrome. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: A

The number of elements is 118. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Hydrogen peroxide (H2O2) is poisonous to tissues. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: D

In a fission nuclear reaction, a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called: Fusion nuclear reaction. The term is defined by the subject, process, or characteristic described in the question.

Correct Answer: B

In Fishes excretory Product is Ammonia. This is based on the organism’s established anatomy, behavior, or biological classification.

Correct Answer: C

In night, when photosynthesis is stopped, plants give off Carbon Dioxide. This is based on the organism’s established anatomy, behavior, or biological classification.

Correct Answer: A

In the manufacture of Vanaspati Ghee/Banaspati Ghee which gas is used: Hydrogen. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

In whole Periodic Table which element Is Most Reducing Agent: lithium. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Iodised salts contains the iodine salts of which metal: Potassium. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Isotopes of an element have the same number of Protons. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: C

Laughing gas has chemical composition of following two elements: Nitrogen + Oxygen. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: A

Lightest metal is Lithium. Its composition and chemical or physical behavior give it the stated classification or property.