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NEETChemistryd and f Block Elements

Match the column : ( array |l|l|l|l| & Column I & & Column II & (Compound) & & Properties (i) & K ₂ MnO ₄ & (a) & Amphoteric (ii) & KMnO ₄ & (b) & array l Paramagnetic & green coloured array (iii) & K ₂ Cr ₂ O ₇ & (c) & array l Diamagnetic & purple coloured array (iv) & V ₂ O ₅ & (d) & array l Diamagnetic & orange coloured array array )

Options

  1. Ai-a, ii-b, iii-c, iv-d
  2. Bi-c, ii-d, iii-b, iv-a
  3. Ci-b, ii-c, iii-d, iv-a
  4. Di-d, ii-a, iii-b, iv-c

Correct answer

C. i-b, ii-c, iii-d, iv-a

Step-by-step solution

Here's the correct pairing of the compounds and their properties: - (i) K2MnO4: (b) Paramagnetic & green colored - (ii) KMnO4: (c) Diamagnetic & purple colored - (iii) K2Cr2O7: (d) Diamagnetic & orange colored - (iv) V205: (a) Amphoteric Note: - Paramagnetic substances are attracted to magnetic fields due to unpaired electrons. - Diamagnetic substances are weakly repelled by magnetic fields due to all electrons being paired. - Amphoteric substances can act as both acids and bases.

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