Correct order of electron affinities of halogens is

• F> Cl> Br> I

• I> Br> Cl> F

• Cl> F>I>Br

• Cl>F>Br>I

Atomic radii of Ti, Zr and Hf vary

• Ti>Zr> Hf

• Ti<Zr< Hf

• Ti< Hf<Zr

• Ti<Zr=HF

If NO₂(N₂O₄) is dissolved in NaOH, we get solution of

• NaNO₂

• NaNO₃

• mixture of NaNO₂ and NaNO₃

• NaNO₄

Correct acidic order of the following compounds is

• i > ii> iii

• iii> i> ii

• ii> iii> i

• i> iii> ii

45.

Which of the following is strongest base?

• C₆H₅NH₂

• p-NO₂-C₆H₄NH₂

• m-NO₂-C₆H₄NH₂

• C₆H₅CH₂NH₂

Which of the following is strongest base?

• Perkin's reaction

• Knoevenagel reaction

• Reformatsky reaction

• Benzoin condensation

Which of the following will not respond to iodoform test?

• Ethyl alcohol

• Propanol-2

• Propanol-1

• Ethanal

Which of the following acids will have lowest value of pK_a?

• CH₃CH₂COOH

• CH₃CHBrCOOH

• CH₃CHFCOOH

• FCH₂CH₂COOH

Which of the following does not contain chiral carbon atom?

• Lactic acid

• 2-chlorobutanoic acid

• Tartaric acid

• Succinic acid

What will be the compound if two valencies of carbonyl group are satisfied by two alkyl groups?

• Aldehyde

• Ketone

• Acid

• Acidic anhydride