1. Which one of the following pairs is paramagnetic ? 1) Cl,0, SO, 3) CIO,, NO,...

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1. Which one of the following pairs is paramagnetic ? 1) Cl,0, SO, 3) CIO,, NO, 4) SO,, N,O 2) P,O, N,O, 2. CO, NO,,BO The correct increasing order of extent of p-bonding in above molecules are II II 1)I< II < III 2) III < II < I 3) III <I< II 4) II < III < I 3. Which of the following comparison of bond length (C-O) is incorrect for the bonds indicated in the given molecule ? II IV C CH2 III 15. 1) I II 2) II < III 3) IV < I 4) III = IV 4. Bond angle in the following conversions decreases except when 16. 1) NH, into NH, 2) NH,1 into N, 3) SO, into SO, 4) CO, into CO, 5. In the compounds of the type ECI, whereE = B, P, As (or) Bi the angles Cl - E - CI for different elements E are in the order 1) B>P As = Bi 2) B>P> As > Bí 3) B <P= As = Bi 4) B <P< As <Bi Statement-1: Bond angle in N'H, is more than that in NH, Statement-2: No lone pair bond pair repulsion is present inN*H, 1) Statement-1 is True, Statement-2 is True; Statement-2 is a Correct explanation for Statement-! 2) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a Correct explanation for Statemen 6. 18. 3) Statement-1 is True, Statement-2 is False 4) Statement-1 is False, Statement-2 is True Statement-1: Trisilyl amine is stronger base than trimethyl amine 19. T 7. Statement-2: In trisilyl amine a pr-dn back bonding exists which leads to decrease in the electron density on nitrogen atom. 20. If 1. Which one of the following pairs is paramagnetic ? 1) Cl,0, SO, 3) CIO,, NO, 4) SO,, N,O 2) P,O, N,O, 2. CO, NO,,BO The correct increasing order of extent of p-bonding in above molecules are II II 1)I< II < III 2) III < II < I 3) III <I< II 4) II < III < I 3. Which of the following comparison of bond length (C-O) is incorrect for the bonds indicated in the given molecule ? II IV C CH2 III 15. 1) I II 2) II < III 3) IV < I 4) III = IV 4. Bond angle in the following conversions decreases except when 16. 1) NH, into NH, 2) NH,1 into N, 3) SO, into SO, 4) CO, into CO, 5. In the compounds of the type ECI, whereE = B, P, As (or) Bi the angles Cl - E - CI for different elements E are in the order 1) B>P As = Bi 2) B>P> As > Bí 3) B <P= As = Bi 4) B <P< As <Bi Statement-1: Bond angle in N'H, is more than that in NH, Statement-2: No lone pair bond pair repulsion is present inN*H, 1) Statement-1 is True, Statement-2 is True; Statement-2 is a Correct explanation for Statement-! 2) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a Correct explanation for Statemen 6. 18. 3) Statement-1 is True, Statement-2 is False 4) Statement-1 is False, Statement-2 is True Statement-1: Trisilyl amine is stronger base than trimethyl amine 19. T 7. Statement-2: In trisilyl amine a pr-dn back bonding exists which leads to decrease in the electron density on nitrogen atom. 20. If