NUMS MDCAT 2024 PAPER NUMS 2024 ( PART 8 ) 1. Piecing a rod of iron metal in a solution of CuSO4: Cu will be deposited Fe is precipitated out Cu and Fe both dissolve No reaction taken place 2. In CH3Cl, bond length of C-Cl is 176.7pm and covalent radius of CI atom is 99.4pm, the covalent radius of cotton atom is: 77.3 pm 175.4 pm 66.3 pm 276.1 pm 3. Correct order of decreasing macron affinities of group VII is: F < CI < Br < I Cl > F > Br > I F > CI > Br > I CI < F < Br < I 4. Predict the highest bond energy of the following single bond: C-H C-C C-O C-N 5. Identify the type of hybridization of nitrogen in the following molecule: Sp2 Sp3 dsp2 Sp 6. Compound X + Na2CO3 → compound Y+CO2+H20 The Compound Y is: NOTE: WRONG STATEMENT ACCORDING TO KEY CH2 = CH – CH2 – CH3 CH3CH2COOH CH3CH2-CHO CH3COOCH3 7. Compound A + I2 +NA2CO3 → Compound B + RCOONa + Nal +H2O. Identify compound B: NOTE: WRONG STATEMENT ACCORDING TO KEY Acetamide Acetic anhydride Acetone Acetic acid 8. Select the carboxylic acid with highest melting point: Propanoic acid Butanoic acid Ethanoic acid Pentatonic acid 9. Identify the following compounds having shortest bond length: Formamide Methyl amine Formic acid Ethanol 10. Identify the alkene which gives only one type of aldehyde upon ozonolysis: 2- butene 1- pentene 2,3 – dimethyl – 2 – butene 2- methyl propene Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12
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