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CTET Solved Paper MCQ - UPTET December 2016 Paper2

116 The given logic symbol represents.

Given logic symbol is

It is AND logic gate with output Y = A.B

117 A body of mass 2 kg is moving on a smooth horizontal surface with initial velocity 10 ms^-1 along east. A uniform force of 10 N towards north is applied on the body. The final velocity of the body after 2 s will be

118 The catalyst used in Hydrogenation of oil is

Oil contains unsaturated double bounds. When vegetable oils (unsaturated hydrocarbon) is treated with hydrogen in the presence of nickel (Ni) catalyst gives saturated hydrocarbon and the process is called hydrogenation of oil.

Hydrogenated Vegetable oil.

119 Which of the following gives with precipitate, with ammoniacal silver nitrate solution?

When acetylene (C₂ H₂) react with Tollen's reagent (Ammoniacal AgNO₃), a white precipitate, of silver salt is obtained.
H - C ≡ C - H + 2 Ag NO₃ + 2 NH₄ OH → Ag C ≡ C - Ag (sliver acetylide (white ppt.) + 2NH₄NO₃ + 2H₂O

120 Number of moles in 128 gm of SO₂will be

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Question:

The diagonals AC and BD of a parallelogram ABCD intersect each other at the point O. If ∠DAC = 320, ∠AOB = 700, Then ∠DBC is equal to

A. 24⁰
B. 86⁰
C. 38⁰
D. 32⁰

Correct answer: C

Explanation:

∠DAC = 320 and ∠AOB = 700 (given) ∠BOC + ∠AOB = 1800 [∵ Liner pair] ⇒ ∠BOC + 700 = 1800 ⇒ ∠BOC = 1800 - 700…

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