Online CBSE NEET 2016 Solution of Chemistry = 1

These are Online CBSE NEET 2016 Solution of Chemistry = 1 for preparation.

1. Hot concentrated sulphuric acid is a moderately strong oxidizing agent. Which of the following reactions does not show oxidizing behaviour ?

• C + 2H₂SO₄ => CO₂ + 2SO₂ + 2H₂O
• CaF₂ + H₂SO₄ => CaSO₄ + 2HF
• Cu + 2H₂SO₄ => CuSO₄ + SO₂ + 2H₂O
• 3S + 2H₂SO₄ => 3SO₂ + 2H₂O

2. Which of the following pairs of d-orbitals will have electron density along the axes ?

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3. The correct geometry and hybridization for XeF4 are :

• Planar triangle, sp³d³
• square planar, sp³d²
• octahedral, sp³d²
• trigonal bipyramidal, sp³d

4. Among the following which one is a wrong statement?

• SeF₄ and CH₄ have same shape
• I₃ + has bent geometry
• PH₅ and BiCl₅ do not exist
• pπ-dπ bonds are present in SO₂

5. The correct increasing order of trans-effect of the following species is :

• Br^– > CN^– > NH₃ > C6H5^–
• CN^– > Br^– > C₆H₅^– >NH₃
• NH₃ > CN^– > Br^– > C6H5^–
• CN^– > C₆H₅^– > Br^– > NH₃

6. Which one of the followng statements related to lanthanons is incorrect ?

• All the lanthanons are much more reactive than aluminium.
• Ce(+4) solutions are widely used as oxidizing agent in volumetric analysis.
• Europium shows +2 oxidation state.
• The basicity decreases as the ionic radius decreases from Pr to Lu.

7. Jahn-Teller effect not observed in high spin complexes of :-

• d⁴
• d⁹
• d⁷
• d⁸

8. Which of the following can be used as the halide component for Friedel-Crafts reaction ?

• Chloroethene
• Isopropyl chloride
• Chlorobenzene
• Bromobenzene

9. In which of the following molecules, all atoms are coplanar ?

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10. Which one of the following structures represents ?