Section — III
CHEMISTRY
91)The bond angle in C2H2 molecule is
92)Esters are derivatives of
93)The name of the structure CH3 – CH = CH2 is
94)Which of the following organic compounds undergoes substitution reaction
95)When dilute hydrochloric acid is added to iron fillings
96)pH scale is introduced by
97)Which principle states that “No two electrons of the same atom can have all the four quantum numbers the same”?
98)The coordination number of Na+ in NaCl is
99)Who proved that ‘vital force theory’ is not correct?
100)Which of the following reactions is exothermic reaction?
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