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NEET Chemistry practice Questions– Set 4 (Inorganic Chemistry)

 

NEET Chemistry  – Set 4 (Inorganic Chemistry)

This set contains high-yield NCERT-based inorganic questions from s-block, p-block, d-block, and Coordination Compounds. Answers reveal on button click. Explanations are bilingual (English + Hinglish) for better understanding.

Q31. Which of the following has the maximum ionic character?





Correct Answer: CsF
Explanation: Ionic character ∝ (difference in electronegativity). As size ↑ down the group, cation becomes more electropositive → CsF is most ionic. Hinglish: Size bada → electron dene ki tendency zyada → ionic nature zyada.
Q32. The oxidation state of Mn in KMnO₄ is:





Correct Answer: +7
Using MathJax:
\[ \text{Let } x + (-2)\times4 + 1 = 0 \Rightarrow x = +7 \] Hinglish: KMnO₄ mein Mn ka oxidation state +7 hota hai — NCERT line.
Q33. The colour of [Ti(H₂O)₆]³⁺ is due to:





Correct Answer: d–d transition
Metal ion: Ti³⁺ has electronic configuration \( 3d^1 \). Single electron → d–d transition → colour. Hinglish: Ek electron hota hai d-orbital mein, jo energy absorb karke jump karta hai → colour.
Q34. Which of the following is paramagnetic?





Correct Answer: Fe³⁺
Fe³⁺ = \( 3d^5 \) → 5 unpaired electrons → strongly paramagnetic. Hinglish: Jitne zyada unpaired electrons → utni hi paramagnetism.
Q35. Which gas is released when Mg reacts with cold water?





Correct Answer: H₂
Reaction:
\[ \ce{Mg + 2H2O -> Mg(OH)2 + H2} \] Hinglish: Magensium thanda paani mein dheere react karta hai, par hydrogen release karta hai.
Q36. Which of the following is a strong oxidizing agent in acidic medium?





Correct Answer: \(\ce{MnO4^-}\)
In acidic medium, permanganate ion shows oxidation state +7 → strongest oxidizing agent. NCERT direct statement.
Q37. The correct order of atomic size is:





Correct Answer: O < N < C
Across a period → size decreases. O (Z=8), N (7), C (6). Hinglish: Left se right jaoge → size ghatta hai.
Q38. In the complex [Co(NH₃)₆]³⁺, the ligand NH₃ is:





Correct Answer: σ-donor
NH₃ donates lone pair on N → σ bond only. No π donation/acceptance. Hinglish: NH₃ simple ligand — sirf lone pair deta hai.
Q39. Which one shows highest hydration energy?





Correct Answer: Li⁺
Hydration energy ∝ charge density. Li⁺ is smallest → maximum charge density → highest hydration energy.
Q40. Identify the correct statement about noble gases:





Correct Answer: They are monoatomic
Noble gases exist as monoatomic species due to completely filled orbitals. Hinglish: Inmein bonding ki need hoti hi nahi.

~ Set 1       • Set 2          •Set 3         •Set 5
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