141. NH3 is a base according to?
(a) Lowery and bronsted
(b) Arrhenius
(c) Lewis
(d) Both B and C
142. Which one of the following is a basic salt?
(a) KCI
(b) Pb (OH) CI_
(b) NaCl
(d) KHS04
143. The base which are soluble in water is called?
a) Acids
c) Salt
(b) Alkalis
(d) Amphoteric
144. The example of weak acie is?
(a) HNO3
(b) Hcl
(c) CH3COOH
(d) H2S04
145. The actual number of atoms in one molecule of an organic substance is represented using a formula known as the?
(a) Molecular formula
(b) Condensed formula
(b) Structural formula
(d) None of these
146. The compounds C6H12 must have?
(a) All single bonds
(b) Al least one triple bond
(c) At least one double bond
(d) All double bonds
147. Alkyl halid is composed of carbon, hydrogen and?
(a) Oxygen
(b) Halogen
(c) Nitrogen
(d) Sulphur
148. Catenation is the linkage of carbon with other?
(a) Oxygen atom
(b) Nitrogen atoms
(b) Carbon atom
(d) Halogens
149. Oxygen is attached on both sides to carbon atom in?
(a) Alchohol
(b) Aldehyde
(c) Ketone
d) Ether
150. Which one of the following is substitution reaction?
(a) Halogenation of alkynes
(b) Halogenation of alkanes
(b) Halogenations of alkenes
(d) Oxidation of alkene
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