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CET / SIET SCHOLARSHIP PRACTICE- Test 05 [Subject :Chemistry]
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"Please Answer all the Questions to know the correct Answers in view score after submission" .
(Estimated Answering Time Duration: 60 Min to 75 Min)
1.
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a
b
c
d
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2. Isotonic solutions are solutions having the same
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a. Surface tension
b. Vapour pressure
c. Osmotic pressure
d. Viscosity
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3.
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a
b
c
d
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4.
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b
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d
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b
c
d
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6.
With regard to the photoelectric effect, identify the correct statement among the following:
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a. Number of electrons ejected increases with the increase in work function
b. Number of electrons ejected increases with the increase in the intensity of incident light
c. Energy of ejected electrons increases with the increase in the intensity of incident light
d. Numbers of electrons ejected increases with the increase in the frequency of the incident light
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7.
Which of the following bases is not present in DNA?
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a. Adenine
b. Guanine
c. Cytosine
d. Uracil
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8.
Solution ‘A’ contains acetone dissolved in chloroform and solution ‘B’ contains acetone dissolved in carbon disulphide. The type of deviations from Raoult’s law shown by solutions A and B, respectively are:
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a. Positive and negative
b. Positive and positive
c. Negative and positive
d. Negative and negative
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9.
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a
b
c
d
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10.
Which one of the following is a polyamide polymer?
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a. Terylene
b. Nylon-6, 6
c. Buna-S
d. Bakelite
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11.
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a
b
c
d
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12.
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a
b
c
d
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13.
In F.C.C. the cell is shared equally by how many unit cells?
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a. 10
b. 8
c. 6
d. 2
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14.
A gas mixture contains 25% Helium and 75% Methane by volume at a given temperature and pressure. The percentage by mass of methane in the mixture is approximately:
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a. 92%
b. 8%
c. 75%
d. 25%
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15.
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a
b
c
d
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16.
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b
c
d
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17.
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a
b
c
d
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18.
The temperature coefficient of a reaction is 2. When the temperature is increased from 30° C to 90°C, the rate of reaction is increased by
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a. 150 times
b. 410 times
c. 72 times
d. 64 times
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19.
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a
b
c
d
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20.
The formal charge on the central oxygen atom in ozone is:
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a. +2
b. +1
c. -1
d. 0
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21.
Gold sol is not a
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a. Lyophobic sol
b. Negatively charged sol
c. Macromolecular sol
d. Multimolecular colloid
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22.
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b
c
d
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b
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26.
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27.
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b
c
d
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28.
In nucleic acids, the nucleotides are joined together by
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a. Phosphodiester linkage
b. Phosphoester linkage
c. Sulphodiester linkage
d. Phosphodisulphide linkage
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29.
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a
b
c
d
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30.
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31.
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33.
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35.
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36.
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b
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d
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37.
Oxidation state of copper is +1 in
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a. Cuprite
b. Malachite
c. Chalcopyrite
d. Azurite
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38.
Copper is extracted from copper pyrites by:
1 point
a. Electrometallurgy
b. Auto reduction
c. Thermal decomposition
d. Reduction by coke
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39.
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a
b
c
d
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40.
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b
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46.
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47.
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b
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d
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48.
Relative lowering of the vapour pressure of a dilute solution of glucose dissolved in 1kg of water is 0.002. The molality of the solution is
1 point
a. 0.222
b. 0.004
c. 0.021
d. 0.111
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49.
1 point
a
b
c
d
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50.
Which of the following is more basic than aniline?
1 point
a. Diphenylamine
b. Triphenylamine
c. p-nitroaniline
d. Benzylamine
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51.
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a
b
c
d
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52.
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a
b
c
d
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53.The two forms of D-Glucopyranose are called
1 point
a. Diastereomers
b. Anomers
c. Epimers
d. Enantiomers
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54.
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a
b
c
d
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55.
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b
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d
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56.
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b
c
d
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57.
Edge length of a cube is 300 pm. Its body diagonal would be
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a. 600 pm
b. 423 pm
c. 519.6 pm
d. 450.5 pm
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58.
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a
b
c
d
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59.
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a
b
c
d
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60.
The value of rate constant of a pseudo-first-order reaction
1 point
a. Depends only on temperature
b. Depends on the concentration of reactants present in small amounts
c. Depends on the concentration of reactants present in excess
d. Is independent of the concentration
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