Physical Science

Correct Answer: A

Carbon monoxide is constituents of pollutant exhaust in hazardous to man. This is based on the organism’s established anatomy, behavior, or biological classification.

Correct Answer: A

Nitrogen Dioxide is does not pollute the air. The other listed choices share the property in the question, while this choice does not.

Correct Answer: B

Radium is elements is not present abundantly in earth’s crust. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: C

Oxygen is gases do plants and trees give out during photosynthesis. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Lipids is a diverse group of hydrophobic molecules. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

Bromine is a Non Metal that remains Liquid at room temperature. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Alpha Rays is a positively charged particle emitted by a radioactive element. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Cu is a transition element. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Conversion of water into steam is not a chemical reaction. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Carbon monoxide is the most toxic gas. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: A

Graphite is used as a lubricant. This is based on the organism’s established anatomy, behavior, or biological classification.

Correct Answer: A

Which of the following metal occurs in free state Lead. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Oxalic Acid Solution is will you use to remove rust stains on cloth. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: D

Hydrogen is of the gas is not known as green house gas. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Which one of the following elements the drum of a Photostat machine is made up of: Selenium. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: C

Ammonia is of the following gases is readily soluble in water at room temperature. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: C

Glutamic Acid is of the following is a bio molecule. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

Xenon is of the following is also called Stranger Gas. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: A

Cadmium is of the following is not a radioactive element. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

Chlorofluorocarbons is of the following is the main culprit in the thinning of Ozone layer in the earth’s stratosphere. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.