ETEA MDCAT 2022 PAPER (PART 16) 1. A radius greater than its parent atom is called: Atomic radii Cationic radii Covalent radii Anionic radii 2. What is the composition of alloy, German silver? Cu + Ag + Ni Cu + Sn 4 Zn + Pb Al+ Cu + Mg + Mn Cu + Zn + Ni 3. One mole of a reactant reacts with a rate of 0.6 moldm”s*. What is the rate constant of this reaction if reaction is first order? 0.3 s^-1 1 s^-1 0.6 s^-1 0.9 s^-1 4. What will be the product when phenol reacts with concentrated HNO,? Ortho-Nitrophenol All of the above Para-Nitrophenol Picric acid 5. Acetone reacts with hydrogen cyanide (HCN) to form a cyanohydrin. It is an example of; Nucleophilic addition Electrophilic addition Electrophilic substitution Nucleophilic substitution 6. Benedict’s solution is the combination of: Cu(OH)2 + NaOH + Tartaric acid (C4H6O6) Cu(OH)2 + NaOH + Citric acid (C6H2O2) Ag(NH3) 0H + NaOH + H2SO4 NaCl + NaOH + Citric acid 7. Which of the following statements is false about the acid-strength of acetic acid? Acetic acid is a weaker acid than formic acid Acetic acid is a stronger acid than monochloroacetic acid. Acetic acid is a weaker acid than Trichloroacetic acid. Acetic acid is a stronger acid than propionic acid. 8. The linear arrangement of amino acid units in proteins is called: Tertiary structure Primary structure Secondary structure Quatemary structure 9. The amount of products that is actually produced during a chemical reaction by performing experiment is called Actual yield Mole Percent yield Theoretical yield 10. The shape of ammonia (NHs) is A Square plannar Trigonal bi pyramidal Trigonal pyramidal Trigonal plannar Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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