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Quiz 6
Mdcat-past-papers - NMDCAT - Chemistry Quiz
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Board: NMDCAT | Subject: Chemistry |
101. The most reactive alcohol towards Lucas reagent is:
2-butanol
2-methyl-2-butanol
2-methyl-1-butanol
2,2-dimethyl-1-butanol
102. Relative acidic strength of alcohol, phenol, water, and carboxylic acid is:
Carboxylic acid > alcohol > phenol > water
Carboxylic acid > phenol > water > alcohol
Phenol > carboxylic acid > alcohol > water
Water > alcohol > phenol > carboxylic acid
103. Which one of the following was used as one of the earliest antiseptic and disinfectant:
Phenol
Ether
Ethanol
Methanol
104. Which one of the following is an appropriate name of above compound?
1,3,6-trinitrophenol
m-Nitrophenol
Tartaric acid
Picric acid
105. Which of following compound is solid at room temperature?
Ethanol
Butane
Methanol
Phenol
106. Benzene is formed when Na reacts with which of the following?
Alcohol
Butyl alcohol
Propanol
Phenol
107. When phenol reacts with formaldehyde, which of the following product is produced?
Adduct
Hydronium ion
Oxonium ion
Phenoxide ion
108. If phenol is treated with 3 moles of conc.HNO₃ in the presence of H₂SO₄ what will be the product?
o-Nitro phenol
p-Nitro phenol
o-Nitro phenol & p-Nitro phenol
Picric acid
109. Which of the following is correct regarding phenol:
Phenol and water are equally acidic
Phenol is less acidic than carboxylic acid
Phenol is less acidic than water
Phenol is less acidic than ethanol
110. Phenols are very reactive towards:
Oxidizing agent
Reducing agent
Dehydrating agent
Hygroscopic agent
111. The relative acidic strength of phenol, water, alcohol & carboxylic acid is:
-COOH > H₂O > C₆H₅OH > -OH
-COOH > C₆H₅OH > H₂O > -OH
-COOH > -OH > C₆H₅OH > H₂O
-COOH > H₂O > -OH > C₆H₅OH
112. Name the compound which forms phenol, when it is oxidized by atmospheric oxygen in the presence of metal catalyst?
Cumene
Toluene
Benzene
Aniline
113. The reaction of sodium salt of phenol with CO₂ is called:
Williamson Synthesis
Aldol reaction
Cannizzaro reaction
Kolbe-Schmitt reaction
114. Which of the following compounds is most acidic?
Water
Ethanol
Phenol
Cyclohexanol
115. The correct sequence according to acidity of alcohols:
Primary > Secondary > Tertiary
Secondary > Tertiary > Primary
Secondary > Primary > Tertiary
Primary < Secondary < Tertiary
116. The pKb of n-propyl amine is:
3.24
3.32
3.28
3.35
117. Phenol is known as:
Carpolic acid
Carbonyl acid
Carbolic acid
Carboxylic acid
118. Phenol is more acidic than alcohols because of the following reason:
Delocalization of negative charge in the OH group
Delocalization of positive charge on the carbon atom ring
Delocalization of negative charge on the ring
Delocalization of positive charge in the OH group
119. R--X on reaction with alcohols forms:
R--CH
ROR
R--X--OH
RH
120. Secondary alcohol is the product of reduction of which carbonyl compound?
Aldehyde
Ketone
Carboxylic acid
Ester
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