Chemistry Mcqs

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

• (A)  K2Cr2O7
• (B)  H2SO4
• (C)  SO3
• (D)  P2O5

Answer

Submitted By :Ali Uppal

The composition of ‘ Golden spangles is_________?

• (A)  PbCrO4
• (B)  PbI2
• (C)  As2Cr2O7
• (D)  BaCrO4

Answer

Submitted By :Ali Uppal

What is chemical symbol for Tungsten?

• (A)  Z
• (B)  T
• (C)  Tn
• (D)  W

Answer

Submitted By :Ali Uppal

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

• (A)  Zero Valency
• (B)  Zero Electronegativity
• (C)  Zero Electron Affinity
• (D)  Both A and B
• (E)  All of these

Answer

Submitted By :Ali Uppal

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

• (A)  C2H2O4
• (B)  CH2
• (C)  CH2O
• (D)  CHO2

Answer

Submitted By :Ali Uppal

The reaction of Lucas reagent is the fastest with_________?

• (A)  (CH3)2CHOH
• (B)  CH3(CH2)OH
• (C)  CH3CH2OH
• (D)   (CH3)3COH

Answer

Submitted By :Ali Uppal

For the reaction 2HI ____________> H2+ I2

• (A)  Kp > kc
• (B)  Kc > kp
• (C)  Kp= kc
• (D)  Kp ≤ kc

Answer

Submitted By :Ali Uppal

If volumetric analysis methyl orange indicator is used when_________?

• (A)  Acid is strong
• (B)  Acid is weak
• (C)  Bade is strong
• (D)  Acid is strong base is weak

Answer

Submitted By :Ali Uppal

Ethylene diammine is ligand________?

• (A)  mono dentate
• (B)  Bi dentate
• (C)   tri dentate
• (D)  Poly dentate

Answer

Submitted By :Ali Uppal

Alpha (α) particles are helium (He) nucleus with a charge of __________ ?

• (A)  e
• (B)  2e
• (C)  3e
• (D)  4e

Answer

Submitted By :Ali Uppal