AIPMT 2002 | NEET Year Wise Previous Years Questions

MCQ (Single Correct Answer)

2.5 litre of 1 M NaOH solution is mixed with another 3 litre of 0.5 M NaOH solution. Then find out molarity of resultant solution.

MCQ (Single Correct Answer)

In electrolysis of NaCl when Pt electrode is taken then H₂ is liberated at cathode while with Hg cathode it forms sodium amalgam

Hg is more inert than Pt

More voltage is required to reduce H⁺ at Hg than at Pt

Na is dissolved in Hg while it does not dissolve in Pt

Conc. of H⁺ ions is larger when Pt electrode is taken.

MCQ (Single Correct Answer)

Which of the following statement is true?

Silicon exhibits 4 coordination number in its compound.

Bond energy of F₂ is less than Cl₂.

Mn(III) oxidation state is more stable than Mn(II) in aqueous state.

Elements of 15^th group shows only + 3 and +5 oxidation states.

MCQ (Single Correct Answer)

Which of the following order is wrong?

NH₃ < PH₃ < AsH₃ $$-$$ acidic

Li < Be < B < C $$-$$ 1^st IP

Al₂O₃ < MgO < Na₂O < K₂O $$-$$ basic

Li⁺ < Na⁺ < K⁺ < Cs⁺ $$-$$ ionic radius.