Free MCQs & Online Quiz Practice for Exams

Q: Which element has the highest 2nd ionization energy? (2017 ETEA)

A) Sr

B) Li

C) Mg

D) Ca

Q: Which of the following is an ionic oxide? (2017 ETEA)

A) Mn₂O₃

B) ZnO

C) CO

D) H₂O₂

Q: Phosphorus (white) catches fire in air and burns with formation of white smoke. The product formed is: (2017 ETEA)

A) Phosphorus(III) oxide

B) Phosphorus(V) oxide

C) Phosphorus(I) oxide

D) Both (a) & (b)

Q: Stream of chlorine is passed over heated sulphur and forms an orange coloured foul smelling liquid having formula: (2017 ETEA)

A) SCl₂

B) S₂Cl₂

C) S₂Cl₂ (duplicate?)

D) mixture of SCl₂ and S₂Cl₂

Q: Chlorine gas dissolves in water to some extent to give: (2017 ETEA)

A) Yellow colored solution

B) Greenish colored solution

C) Bluish colored solution

D) Colorless solution

Q: The compound which can be hydrolyzed by means of water is: (2017 ETEA)

A) CCl₄

B) SiCl₄

C) CH₄

D) None

Q: The compound which is purely acidic is: (2017 ETEA)

A) Mg(OH)₂

B) Al(OH)₃

C) Si(OH)₄

D) None

Q: Three reactions are given: i. I₂SO₄ + 2HF → F₂ + SO₂ + 2H₂O; ii. I₂SO₄ + 2HBr → Br₂ + SO₂ + 2H₂O; iii. I₂SO₄ + 2HI → I₂ + I₂S + 4H₂O. The strongest reducing agent in these reactions is: (2018 ETEA)

A) III

B) I

C) II

D) All

Q: We have three test tubes having aqueous solutions of Ca(NO₃)₂, Ba(NO₃)₂ and K₂CO₃ respectively. On addition of dilute H₂SO₄ which test tube solution turns milky? (2018 ETEA)

A) Ca(NO₃)₂ solution

B) Ba(NO₃)₂ solution

C) K₂CO₃ solution

D) All turned milky

Q: The cation that distorts the electron cloud of NO₃⁻ ion more and facilitates its decomposition is: (2018 ETEA)

A) Li⁺

B) Mg²⁺

C) Cs⁺

D) Be²⁺

Q: Compounds having the ability of showing inert pair effect: (2018 ETEA)

A) NH₃

B) H₂O

C) SnCl₂

D) All

Q: Thermal stability is related to the polarizing power of the cation. Which of the following compounds has a cation with strong polarizing power? (2018 ETEA)

A) MgCl₂

B) AlCl₃

C) LiCl

D) BaCl₂

Q: The compound with a bigger negative ion is: (2018 ETEA)

A) NaCl

B) KCl

C) Na₂S

D) Ca₂S₂?

Q: Select hydrogen carbonate which is most stable towards thermal decomposition: (2018 ETEA)

A) NaHCO₃

B) KHCO₃

C) RbHCO₃

D) CsHCO₃

Q: Choose the reagent used to test presence of Fe³⁺ ions in solution with formation of intense red colour? (2018 ETEA)

A) NaSCN

B) NH₄SCN

C) KSCN

D) All

Q: Whenever Pb shows inert pair effect it always forms: (2018 ETEA)

A) Ionic bond

B) Covalent bond

C) Coordinate covalent bond

D) Metallic bond

Q: White phosphorus catches fire spontaneously in air forming mixture of oxides. Select the correct oxides? (2018 ETEA)

A) P₄O₆ and P₂O₃

B) P₄O₁₀ and P₃O₆

C) P₂O₄ and P₄O₈

D) P₄O₆ and P₄O₁₀

Q: SiO₂ is the only oxide that reacts with: (2018 ETEA)

A) HCl(aq)

B) KOH(aq)

C) Steam

D) SO₂

Q: As the polarizing power of cation increases thermal stability of carbonates: (2019 ETEA)

A) Increases

B) Decreases

C) Not dependent

D) Depends upon pressure

Q: The anhydride of HClO is: (2019 ETEA)

A) ClO₃

B) ClO₂

C) Cl₂O₅

D) Cl₂O