A. Prontosil B. Salvarsan C. Sulphanilamide D. Lansoprazole Solution: (D) Lansoprazole is a medication that reduces stomach acid and is... View Article
A. It has some CO as bridging ligands B. EAN is 35 C. Mn-Mn bond is present in this molecule D. Each Mn atom is sp3 hybridized Solution: (C)... View Article
Solution: (D) The least number of monochlorination is possible in compound D and it will give only one type of mono chlorinated product as all... View Article
A. An increase of 50 mL B. An increase of 100 mL C. An increase of 150 ml D. A decrease of 50 mL Solution: (A) When we heat 100 mL of PH3 it... View Article
A. 1.08 kg B. 0.86 kg C. 0.68 kg D. 1.68 kg Solution: (B) V / T = nR / p V and T for both cases are the same. Hence, N1 / p1 = n2 / p2 or... View Article
A. 0.05 mole B. 0.025 mole C. 0.10 mole D. 0.005 mole Solution: (B) Let (NH4)2SO4 to be added to 500 mL solution = x mol [NH4+] = 4xM pH =... View Article
A. NaF B. NaCI C. NaBr D. NaI Solution: (A) If we look at the general rule: “going down in a group, ionic radius increases and lattice... View Article
The major commercial source of helium is natural gas which contains an average of 0.4% helium. Helium is also produced in the earth by the... View Article
A. 80 B. 160 C. 240 D. 320 Solution: (A) ∵ 24 gms of propane reacts with 160 gms of bromine. ∴ 21 gms of propane 160 / 42 × 21 = 80 gms.... View Article
εC − HεO = OεC = OεO − HεC − C +x1 + x2 + x3 + x4 + x5 Resonance energy of CO2 is kJ/mol and ΔH vaporization[H2O(l)] is y(kJ/mol) A. 8x1 + 2x5... View Article
A. Λ = x × 1000 / 0.1 B. Λ = 2 × 1000 / x × 0.1 C. Λ = x × 1000 / 0.5 D. Λ = 0.5 / 1000 x Solution: (B) Λ = 2 × 1000 / x × 0.1 We know, N... View Article
