Chemistry MCQs

Page No. 3

The amount of Zinc (at. Wt=65) necessary to produce 224 ml of H2 by the reaction with an acid will be______?


a0.065gm

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b0.65gm

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c6.5gm

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d7.5gm

✓


View Answer 7.5gm

The weight of a metal of equivalent of 12 which will give 0.475g of its chloride is_______?


a0.12g

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b0.16g

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c0.18g

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d0.24g

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View Answer 0.18g

A brivalent metal has the equivalent weighr of 12. The molecular weight to its oxide will be_______?


a24

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b32

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c36

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d40

✓


View Answer 40

When SO2 solution is passed over which of the following it turns green?


aK2Cr2O7

✓


bH2SO4

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cSO3

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dP2O5

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View Answer K2Cr2O7

The composition of ‘ Golden spangles is_________?


aPbCrO4

✓


bPbI2

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cAs2Cr2O7

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dBaCrO4

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View Answer PbCrO4

Noble gases are so called zero group because they have:_________?


aZero Valency

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bZero Electronegativity

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cZero Electron Affinity

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dBoth A and B

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View Answer Both A and B

If a compound contains 24 gram of carbon 2 gram of hydrogen and 64 gram of oxygen then its empirical formula will be________?


aC2H2O4

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bCH2

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cCH2O

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dCHO2

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View Answer CHO2

The reaction of Lucas reagent is the fastest with_________?


a(CH3)2CHOH

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bCH3(CH2)OH

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cCH3CH2OH

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d(CH3)3COH

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View Answer (CH3)3COH

For the reaction 2HI ____________> H2+ I2


aKp> kc

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bKc> Kp

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cKp= kc

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dKp ≤ kc

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View Answer Kp= kc

If volumetric analysis methyl orange indicator is used when_________?


aAcid is strong

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bAcid is weak

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cBase is strong

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dAcid is strong base is weak

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View Answer Acid is strong

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