Free MCQs & Online Quiz Practice for Exams

Q: Select the oxide which will be acidic in nature ? (2013 ETEA)

A) P₂O₅

B) CaO

C) K₂O

D) BaO

Q: Choose the correct order of decreasing basic strength: (2013 ETEA)

A) MgO>Na₂O>P₄O₁₀>Al₂O₃

B) Na₂O>MgO>Al₂O₃>P₄O₁₀

C) P₄O₁₀>Na₂O>MgO>Al₂O₃

D) Al₂O₃>MgO>P₄O₁₀>Na₂O

Q: Molecular formula of silica is: (2013 ETEA)

A) SiO₄

B) SiO₃

C) SiO₂

D) NaAlO₂

Q: Which one of the following oxides exhibits amphoteric properties? (2014 ETEA)

A) K₂O

B) MgO

C) ZnO

D) CaO

Q: Which one of the following is the strongest acid? (2014 ETEA)

A) HClO

B) HClO₂

C) HClO₃

D) HClO₄

Q: Lime water is saturated solution of: (2014 ETEA)

A) Mg(OH)₂

B) Ca(OH)₂

C) Ba(OH)₂

D) KOH

Q: Which one of the following is most ionic? (2014 ETEA)

A) NaCl

B) MgCl₂

C) KCl

D) AlCl₃

Q: Electronegativity of aluminum is nearly equal to that of: (2014 ETEA)

A) Be

B) B

C) Mg

D) K

Q: Milk of magnesia used for treatment of acidity in stomach has formula: (2015 ETEA)

A) Mg(OH)₂

B) MgSO₄

C) Ca(OH)₂

D) CaSO₄

Q: The order of reducing power of halide ion is: (2015 ETEA)

A) I⁻>Br⁻>Cl⁻>F⁻

B) F⁻>Cl⁻>Br⁻>I⁻

C) I⁻>Cl⁻>F⁻>Br⁻

D) Br⁻>Cl⁻>I⁻>F⁻

Q: The first ionization energy of an atom depends on: (2016 ETEA)

A) Charge on nucleus

B) Screening effect

C) Electronic configuration

D) All of the above

Q: Select the correct reaction of the following: (2016 ETEA)

A) SnO + 4NaOH → Sn(OH)₄ + 2Na₂O

B) SnO + 4NaOH → Na₄Sn(OH)₄

C) SnO + 2NaOH → Na₂Sn(OH)₄

D) None of the above

Q: When chlorine water is added to KI solution the solution becomes: (2016 ETEA)

A) Pale yellow

B) Violet

C) Brown

D) Red

Q: Choose the correct order of decreasing basic strength: (2016 ETEA)

A) MgO < Na₂O > P₄O₁₀ > Al₂O₃

B) Na₂O > MgO > Al₂O₃ > P₄O₁₀

C) P₄O₁₀ > Na₂O > MgO > Al₂O₃

D) Al₂O₃ > MgO > P₄O₁₀ > Na₂O

Q: Reaction of water with magnesium is: (2016 ETEA)

A) Slow

B) Fast

C) It is slow in the start and becomes fast at the end

D) It is slow in the start and becomes very slow at the end

Q: Concentrated HCl is added to a metal salt and then subjected to flame test on platinum wire which imparts crimson to the flame. Which metal salt is it? (2016 ETEA)

A) Sodium

B) Potassium

C) Strontium

D) Calcium

Q: XYZ are elements in the same short period; oxide of X is amphoteric, oxide of Y is basic and oxide of Z is acidic. What is the order of increasing atomic number for these elements? (2016 ETEA)

A) X Y Z

B) X Z Y

C) Y X Z

D) Z X Y

Q: Lithium reacts with air to form: (2016 ETEA)

A) Li₂O

B) Li₃N

C) Li₂O₂ + Li₂O₂

D) both a) and b)

Q: Alkali metals Rb & Cs catch fire in air and produce superoxide such as: (2017 ETEA)

A) Rb₂O & Cs₂O

B) RbO₂ & CsO₂

C) RbO & CsO

D) RbO₂ & Cs₂O₂

Q: Magnesium metal burns in air, the product formed is: (2017 ETEA)

A) MgO

B) Mg₃N₂

C) MgCO₃

D) Both (a) and (b)