Page 383 - General Knowledge

GENERAL KNOWLEDGE 2019

142. A molecule is a smallest part of matter which possesses all properties of original matter. A
molecule is electrically _________?
A. Positve
B. Negative
C. either positive or negative
D. neutral

143. A neutron , an electron, a proton and an alpha particle are moving with the same kinetic
energy. Which of the following is correct order of their speeds?
A. Alpha Particle, Neutron, Proton, Electron
B. Electron, Proton , Neutron, Alpha Particle
C. Alpha Particle, Proton, Neutron, Electron
D. Neutron, Proton, Alpha Particle, Electron

144. Whenever an alkali metal such as Lithium or Sodium reacts with water , which among the
following gas is produced?
A. Oxygen
B. Hydrogen
C. Ozone
D. Carbondioxide

145. Which among the following are used as components to produce Nitrolim, a widely used
fertilizer in past?
A. Nitrogen & Limestone
B. Calcium Carbide and Nitrogen
C. Calcium Carbide & Carbon
D. Calcium Carbide and Limestone

146. The aqueous solution of which among the following acids is called Vinegar?
A. Oxalic acid
B. Citric acid
C. Acetic acid
D. Hydrochloric acid

147. Which among the following is the correct decreasing of bioelements in Human Body?
A. oxygen, hydrogen, Carbon, nitrogen, calcium, and phosphorus
B. oxygen, carbon, nitrogen, hydrogen, calcium, and phosphorus
C. oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus
D. carbon, oxygen, hydrogen, nitrogen, calcium, and phosphorus

148. Which among the following happens in an oxidation reaction ?
A. Electrons are gained
B. Electrons are lost
C. Protons are gained
D. Protons are lost

149. Identify the thermosetting plastic from the given options:
A. Polythene
B. Bakelite

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