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JEE Mains 2027: Top Chemistry Questions — Inorganic & Biomolecules
JEE Chemistry • 10 questions • Free on ExamBattle
Practice Questions
Q1
The coordination number of platinum in [Pt(NH₃)₄Cl₂] is:
- A. 4
- B. 6
- C. 2
- D. 5
Q2
Adsorption is an exothermic process. Increasing temperature will:
- A. Increase adsorption
- B. Decrease adsorption
- C. Have no effect
- D. First increase then decrease
Q3
The EAN (Effective Atomic Number) rule was proposed by:
- A. Werner
- B. Sidgwick
- C. Pauling
- D. Bethe
Q4
Which of the following is a secondary alcohol?
- A. CH₃OH
- B. (CH₃)₂CHOH
- C. CH₃CH₂OH
- D. (CH₃)₃COH
Q5
Proteins give a positive Biuret test because they contain:
- A. Amino groups
- B. Peptide bonds (−CO−NH−)
- C. Disulfide bonds
- D. Aromatic rings
Q6
The half-life of ¹⁴C is 5730 years. It is used in:
- A. Nuclear reactors
- B. Radiocarbon dating of archaeological samples
- C. Medical imaging (PET scans)
- D. Treating cancer
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