Chemistry MCQS

101. Which particles of the atom have a negative charge?
A. Proton
B. Neutron
C. Electron
D. None of the above

102. Which are on the outer Orbit of an atom?
A. Proton
B. Neutron
C. Electrons
D. None of these

103. Which of the following is not a mixture?
A. LPG
B. Air
C. Gasoline
D. Distilled water

104. It is an industrial process of producing ammonia by the reaction of nitrogen with hydrogen in the presence of a catalyst :
A. Solvay process
B. Haber process
C. Bessemer process
D. Bayer process

105. About 50% of the earth’s crust, including the water on Earth and the atmosphere is:
A) Hydrogen
B) Oxygen
C) Nitrogen
D) Oxygen

106. Acid rain is mainly caused by emissions of _ in the atmosphere.
A) Sulphur Dioxide
B) Nitrogen Oxide
C) Carbon Dioxide
D) Sulphur Dioxide and Nitrogen Oxide

107. Light year is related to:
A) Energy
B) Time
C) Speed
D) Distance

108. What is the unit to measure the quantity of Ozone in the atmosphere?
A) Coulomb
B) Dobson
C) Quanta
D) Lumens

109. Which of the following blood group is a universal blood recipient?
A) A+
B) O+
C) B+
D) AB+

110. The unit of surface tension is:
A) Newton per meter
B) Newton per meter square
C) 760 mm of Hg
D) Newton square per meter