ECAT Chemistry MCQ's Test For Full Book

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  • Chapter NameCh 1 - Fundamental Concepts

ECAT Chemistry MCQ's Test For Full Book

  • Total Questions30

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ECAT Chemistry MCQ's Test For Full Book

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Question # 1

The relative abundance of Pb isotopes is 1.5% Pb204, 23.6% Pb206, 22.6% Pb207, 52.3% Pb208The relative atomic mass of Pb is

Question # 2

The molarity of toluene solution in benzene is 0.22 if 5 grams of toluene dissolved, then mass of benzene is grams is

Question # 3

Carboxylic acids react with acids releasing gas from it:

Question # 4

In CH4, all the H-C-H bond angles are

Question # 5

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 6

Which of the following decolorized Br2-water

Question # 7

Alcohols are derivatives of:

Question # 8

The velocity of photon is:

Question # 9

In sp2hybridization bond angle is _____

Question # 10

BOD is

Question # 11

Solvent extraction method is a particularly useful technique of separation when the product to be separated is:

Question # 12

The electrolytic cell used for the production of metallic sodium is known as

Question # 13

The color of Cr3+ion is

Question # 14

Electronegativity values of the elements F, CI and Br vary

Question # 15

Which of the following is an aromatic compound

Question # 16

Which of the following element is most reactive

Question # 17

Heat absorbed or released during the chemical reaction of physical process at constant pressure is equal to

Question # 18

Resonance energy of benzene is (in KJ mol-1)

Question # 19

the unreactivity of alkanes is based upon

Question # 20

Gypsom added in the cement is

Question # 21

Alkyl benzenes are readily oxidized by axidfied

Question # 22

The most reactive compound for electrophilic nitration will be

Question # 23

Which of the following is not present in nucleotide?

Question # 24

The percentage of methane in natural gas is

Question # 25

Which of the following is a constituent of nylon?

Question # 26

Which is used in bacterial lamps

Question # 27

The silver bromide in hypo (Na2S2O3) solution is

Question # 28

Drained sewage has B.O.D

Question # 29

The order of the rate of diffusion of gases NH3,SO2, CL2, and CO2 IS :

Question # 30

The color of ppts formed by Fehling's test is

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