The oxidation number of iron (Fe) in sodium nitroprusside is
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Correct answer: (B) +2
1 marks · 2023 · Set A
Question 103
How many σ and π bonds are in a tetracyanoethylene molecule?
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Correct answer: (A) 9σ and 9π bonds
1 marks · 2023 · Set A
Question 104
Which of the following is a polyamide?
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Correct answer: (A) Nylon
1 marks · 2023 · Set A
Question 105
Which of the following does not give a red precipitate with ammoniacal cuprous chloride?
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Correct answer: (C) CH₃—C≡C—CH₃
1 marks · 2023 · Set A
Question 106
Which of the following is the most stable carbonium ion?
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Correct answer: (B) (C₆H₅)₃C⁺
1 marks · 2023 · Set A
Question 107
Which of the following is the strongest acid?
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Correct answer: (B) CH₃CHClCOOH
1 marks · 2023 · Set A
Question 108
Which of the following is a nucleophilic reagent?
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Correct answer: (A) R₃N
1 marks · 2023 · Set A
Question 109
Markownikoff’s rule is applicable to which of the following reactions?
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Correct answer: (C) HBr + CH₃CH=CH₂
1 marks · 2023 · Set A
Question 110
An isomer of diethyl ether is
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Correct answer: (A) (CH₃)₃C—OH
1 marks · 2023 · Set A
Question 111
Which of the following statements is true?
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Correct answer: (A) PH₃ is less alkaline than NH₃
1 marks · 2023 · Set A
Question 112
Which of the following does not give oxygen on heating?
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Correct answer: (C) (NH₄)₂Cr₂O₇
1 marks · 2023 · Set A
Question 113
CHCl₃ on oxidation gives
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Correct answer: (A) phosgene
1 marks · 2023 · Set A
Question 114
Which of the following is a zero-order reaction?
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Correct answer: (B) H₂ + Cl₂ —hν→ 2HCl
1 marks · 2023 · Set A
Question 115
What is aspirin?
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Correct answer: (B) Acetyl salicylic acid
1 marks · 2023 · Set A
Question 116
Which of the following reacts with aqueous KOH to produce acetaldehyde?
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Correct answer: (B) CH₃CHCl₂
1 marks · 2023 · Set A
Question 117
Which of the following is not yellow in colour?
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Correct answer: (A) Zn₂[Fe(CN)₆]
1 marks · 2023 · Set A
Question 118
The oxidation number of Cr in [Cr(NH₃)₄Cl₂]⁺ is
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Correct answer: (A) +3
1 marks · 2023 · Set A
Question 119
Which of the following exhibits optical isomerism?
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Correct answer: (C) cis-[Co(NH₃)₂(en)₂]³⁺
1 marks · 2023 · Set A
Question 120
The standard electrode potentials of three alkali metals X, Y and Z are −3.05 V, −1.66 V and −0.40 V respectively. Which is the strongest reducing agent?
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Correct answer: (A) X
1 marks · 2023 · Set A
Question 121
The coordination number of Co in [Co(en)₂Cl₂]Cl is
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Correct answer: (C) 6
1 marks · 2023 · Set A
Question 122
Which of the following is picric acid?
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Correct answer: (A) 2,4,6-trinitrophenol
1 marks · 2023 · Set A
Question 123
Which of the following vitamins contains cobalt?
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Correct answer: (A) B₁₂
1 marks · 2023 · Set A
Question 124
In which of the following species is the number of σ and π bonds the same?
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Correct answer: (C) XeO₄
1 marks · 2023 · Set A
Question 125
Which of the following is not a steroid hormone?
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Correct answer: (A) Thyroxine
1 marks · 2023 · Set A
Question 126
Dengue fever is caused by the bite of which of the following mosquitoes?
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Correct answer: (B) Aedes
1 marks · 2023 · Set A
Question 127
The main function of ribosomes is
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Correct answer: (B) protein synthesis
1 marks · 2023 · Set A
Question 128
Which of the following is not a greenhouse gas?
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Correct answer: (C) Argon
1 marks · 2023 · Set A
Question 129
Adenosine triphosphate (ATP) is formed in
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Correct answer: (A) mitochondria
1 marks · 2023 · Set A
Question 130
Which of the following mammals lays eggs?
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Correct answer: (A) Echidna
1 marks · 2023 · Set A
Question 131
The proteolytic enzyme renin is found in
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Correct answer: (E) None of the above
1 marks · 2023 · Set A
Question 132
Intercostal muscles occur in
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Correct answer: (C) ribs
1 marks · 2023 · Set A
Question 133
Geocarpic fruit is
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Correct answer: (B) groundnut
1 marks · 2023 · Set A
Question 134
The diploid chromosome number in humans is
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Correct answer: (A) 46
1 marks · 2023 · Set A
Question 135
Floridean starch has a structure similar to
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Correct answer: (A) amylopectin and glycogen
1 marks · 2023 · Set A
Question 136
Which of the following is the most abundant protein in animals?
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Correct answer: (C) Collagen
1 marks · 2023 · Set A
Question 137
Sun hemp jute is obtained from
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Correct answer: (B) phloem
1 marks · 2023 · Set A
Question 138
Identify the basic amino acid from the following.
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Correct answer: (B) Lysine
1 marks · 2023 · Set A
Question 139
Chemically, insulin is a
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Correct answer: (A) protein
1 marks · 2023 · Set A
Question 140
Nitrogen is not an essential constituent of
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Correct answer: (C) carbohydrate
1 marks · 2023 · Set A
Question 141
Which one of the following is a hereditary disease?
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Correct answer: (C) Phenylketonuria
1 marks · 2023 · Set A
Question 142
DNA is mainly found in
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Correct answer: (A) nucleus
1 marks · 2023 · Set A
Question 143
RQ है
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Correct answer: (C) CO₂/O₂
1 marks · 2023 · Set A
Question 144
Which of the following is not a plant hormone?
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Correct answer: (E) None of the above
1 marks · 2023 · Set A
Question 145
What are plant pigments?
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Correct answer: (A) Chromoprotein
1 marks · 2023 · Set A
Question 146
Botulism is
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Correct answer: (B) food-borne intoxication
1 marks · 2023 · Set A
Question 147
The basic unit of nucleic acid is
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Correct answer: (A) nucleotide
1 marks · 2023 · Set A
Question 148
Antibodies in our body are complex
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Correct answer: (C) glycoproteins
1 marks · 2023 · Set A
Question 149
Which of the following is not an autoimmune disease?