UKSSSC 28 June 2019 exam paper Answer Key – First Shift

81. The stamens of family papilionaceae are :
(A) Didynamous
(B) Tetradynamous
(C) Diadelphous
(D) Polydelphous

82. Red colour of Red Sea is due to :
(A) Sargasum
(B) Batrachospermum
(C) Clamydomonas
(D) Trichodesmium

83. In the following reactions, {A} and {B} are respectively:
C₂H₅Br + Ag₂O(dry) → {A} + Ag Br
C₂H₅Br + Ag₂O(moist) → {B} + Ag Br
(A) Ethoxy ethane and Ethoxy ethane
(B) Ethanol and Ethanol
(C) Ethyl methyl ether and Ethanol
(D) Ethoxy ethane and Ethanol

84. Allergies are caused due to :
(A) Glucagon secreted by a-cells of pancreas
(B) Histamine and serotonin secreted by mast cells
(C) Antihistamin taken as drug
(D) None of the above

85. Oxybaemoglobin acts as :
(A) Alkali
(B) Neutral substance
(C) Acid
(D) Buffer

86. The I.U.P.A.C. name of following compound is :
CH₃ – CO – CH₂ – CH₂ – CH₃
(A) Pentane – 2 – one
(B) Butane – 2 – one
(C) Butane – 3 – one
(D) Pentane – 3 – one

87. Member of Pisces or fishes class is :
(A) Whale
(B) Hippocampus
(C) Star fish
(D) Prawn fish

88. In Down’s Syndrome (Mongolian idiocy), the number of chromosomes is present in each cell of the body:
(A) 45
(B) 40
(C) 47
(D) 36

89. Reduction of Iron-oxide takes place in Blast furnace by:
(A) CaCO₃
(B) SiO₂
(C) CO
(D) C

90. Which of the following gases will have smallest value of Van der Waals constant ?
(A) NH₃
(B) N₂
(C) H₂
(D) CO₂

91. Gene gun is suitable for :
(A) Disarming Pathogen Vector
(B) Transformation of plant cells
(C) Constructing recombinant D.N.A. by joining with vector
(D) D.N.A. fingerprinting

92. Which of the following is not a function of cytoskeleton in a cell ?
(A) Intracellular transport
(B) Maintenance of cell shape and structure
(C) Support of the organelle
(D) Cell motility

93. The chemical formula of Gypsum :
(A) CaSO₄ · H₂O
(B) CaSO₄ . ½ H₂O
(C) CaSO₄ . 2H₂O
(D) CaSO₄ · 1 ½ H₂0

94. Edible part of the tomato is :
(A) Pericarp
(B) Seed
(C) Placenta
(D) All of the above

95. Inulin is :
(A) A polymer of fructose found in cell sap
(B) Polymer of protein found in lever
(C) Polymer of fat found in adipose tissue
(D) A hormone

96. Salicylic acid on reacting with acetic anhydride in acedic medium forms: (A) Asprin
(B) Salol
(C) Mustard oil
(D) Oil wintergreen

97. Indian Institute of Natural Resins and Gums is located in :
(A) Ranchi
(B) Mysore
(C) Dehradun
(D) Nagpur

98. Which cells of the pancreas secrete insulin hormone ?
(A) 𝜶-cells
(B) 𝝱-cells
(C) 𝞬-cells
(D) All of the above

99. Which of the following is not correct for Frenkel defect in crystals ?
(A) It has no effect on density of the crystal
(B) It occurs in crystals where the difference in the size of cations and
anions is large

(C) Silver halides shows Frenkel defect
(D) It is due to equal number of cations and anions missing from lattice sites

100. Triticum aestivum is a :
(A) Gymnosperm
(B) Angisperm
(C) Pteridophyta
(D) None of the above

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