Chemistry Class 10th
81. Organic Compounds can be classified into ______ groups.
A) One
B) Two
C) Three
D) Four
82. Plastics and Detergents are example of:
A) Naturally Occurring Organic Compounds
B) Synthetic Organic Compounds
C) Inorganic compounds
D) None of the above
83. Carbon atom valency of ______
A) One
B) Two
C ) Three
D) Four
84. Which of the following is used to represent an organic compound:
A) Molecular Formula
B) Condensed Formula
C) Dot Cross Formula
D) All of the above
85. The Formula representing the actual number of atoms present in the molecule:
A) Structural Formula
B) Molecular Formula
C) Condensed Formula
D) Dot and Cross formula
86. Formula showing the arrangement of different atoms of various elements around carbon atoms present in a molecule of a compound:
A) Compound Formula
B) Molecular Formula
C) Structural Formula
87. The _______ formula is formula where the groups of atoms are shown in order as they appear in the structural formula with no bonds:
A) Condensed Formula
B) Structural Formula
C) Molecular Formula
D) None of the above
88. Hexane has ______ carbon atoms
A) 2
B) 3
C) 5
D) 6
89. A structural formula in which ______ are shown using dots and crosses between atoms of compound is called dot cross formula.
A) Protons
B) Electrons
C) Neutrons
D) Valancy
90. Methane has _______ carbon atoms.
A) 1
B) 2
C) 4
D) 8
91. Heptane molecular formula:
A) CH4
B) C2H6
C) C6H14
D) C7H16
92. C9H20 is also known as:
A) Methane
B) Propane
C) Pentene
D) Nonane
93. Organic compounds are classified into _____ groups:
A) 1
B) 2
3) 4
D) 6
94. Open chain compounds are also called as:
A) Acyclic
B) Cyclic
C) Closed
D) None of the above
95. Closed chain Compounds are also called
A) Acyclic
B) Cyclic
C) Compressed
D) All of the above
96. Which of the following can form long possible chains:
A) Open chain compounds
B) Closed Chain Compounds
C) All of the above
D) None of the above
97. Open Chain Compounds are classified into ____ groups
A) 1
B) 2
C) 3
D) 5
98. Organic compounds that form chains that have no branches:
A) Straight Chain Compounds
B) Branched Chained Compounds
C) Saturated Organic Compounds
D) Unsaturated organic compounds
99. The prefix “ n” used in straight line compounds, stands for:
A) Number
B) Normal
C) Neon
D) Nitrogenous
100. Compounds that are linked to other:
A) Straight Chain Compounds
B) Branched Chained Compounds
C) Saturated Organic Compounds
D) Unsaturated organic compounds