300+ TOP MCQs on s-Block Elements and Answers

NEET  Chemistry is the very imporatant paper in the Medical Entrance EXAM. So these NEET Chemistry MCQs with Answers for all Concepts as per the new syllabus. Practice daily with these NEET Chemistry objective questions on air pollution. NEET Chemistry s-Block Elements Multiple Choice Questions

MCQs on s-Block Elements :

1. Which of the compounds is known as Slaked lime?
(A) CaO
(B) CaSO4
(C) Ca(OH)2
(D) CaCO3

Answer

Answer: (c)

2. Which of the ions have maximum hydration energy?
(A) Sr2+
(B) Ca2+
(C) Mg2+
(D) Be2+

Answer

Answer: (d)

3. As compared to K, Na has
(A) higher ionization potential
(B) lower melting point
(C) lower electronegativity
(D) larger atomic radius

Answer

Answer: (a)

4. Which one is the most stable carbonate?
(A) BaCO3
(B) MgCO3
(C) CaCO3
(D) BeCO3

Answer

Answer: (a)

5. Plaster of Paris (POP) is
(A) CaSOH2O
(B) CaSO2H2O
(C) CaSO4
(D) CaSO1/2H2O

Answer

Answer: (d)

6. Which oxide is amphoteric?
(A) BaO
(B) CaO
(C) BeO
(D) MgO

Answer

Answer: (c)

7. Be shows the diagonal relationship with
(A) Na
(B) Al
(C) Mg
(D) B

Answer

Answer: (b)

8. The tendency to lose their valance electron easily by alkali metals makes them
(A) strong reducing agent
(B) weak reducing agent
(C) strong oxidising agent
(D) weak oxidising agent

Answer

Answer: (a)

9. Which one is known as a fusion mixture?
(A) Na2CO3 + NaHCO3
(B) Na2CO3 + NaOH
(C) Na2CO3 + K2SO4
(D) Na2CO3 + K2CO3

Answer

Answer: (d)

10. Find the incorrect trend for alkaline earth metals
(A) atomic size Be < Mg < Ca < Sr
(B) second ionization energy Be < Mg < Ca < Sr
(C) Hydration enthalpy Sr < Ca < Mg < Be
(D) Density Ca < Mg < Be < Sr

Answer

Answer: (b)

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