The below given first-order reaction has initial and final moles
Question: The below given first-order reaction has initial and final moles of PCl5 as 50 and 10 respectively in 120... View Article
Question: The below given first-order reaction has initial and final moles of PCl5 as 50 and 10 respectively in 120... View Article
Solution: Answer: 1.096 g Let the weight of NaOH be w1 g and that of Na2CO3 be w2 g The... View Article
Answer: 20 min. [A]t = [A]o / 2n [A]t is the concentration at time t [A]o is the initial concentration... View Article
a. Novolac b. Buna-S c. Dacron d. PHBV Solution: Answer: (a) Bakelite is formed by cross-linking of novolac and formaldehyde.... View Article
a. Both acid b. Both base c. HNO3: acid and H2SO4: base d. HNO3: base and H2SO4: acid Solution: Answer:... View Article
a. sp2, sp, sp3 b. sp3, sp, sp3 c. sp, sp, sp3 d. sp2, sp2, sp3 Solution: Answer: (a) To... View Article
a. Ammonia gas b. Ethyne c. But-2-yne d. Propyne Solution: Answer: (c) For reaction with sodium metal, the compound should... View Article
Question: Predict the product. Solution: Answer: (c) This reaction is aldol condensation. Hence, option (c) is the correct answer.
Question: Benzene with Br and CONH2 at the meta position is made to react with KOBr to give A and... View Article
a. \(\begin{array}{l}O_{2}^{+}\end{array} \) b. \(\begin{array}{l}O_{2}^{-}\end{array} \) c. [Cu(NH3)4]Cl2 d. CuI Solution: Answer: (d) Magnetic moment = √n(n+2) B.M Where n... View Article
a. 6 b. 8 c. 4 d. 5 Solution: Answer: (b) In CCP/FCC, there are two tetrahedral voids on every... View Article
Question: Find product B. Solution: Answer: (b) Hence, option (b) is the correct answer.
a. Ge b. Sn c. In d. Pb Solution: Answer: (b) The element with the outer electron configuration of 4s2... View Article
a. 0 b. 1 c. 2 d. 3 Solution: Answer: (c) In NiCl2, Ni is in +2 oxidation state. Hence,... View Article
a. Acid chloride > Acidic anhydride > Ester b. Ester > Acidic anhydride > Acid chloride c. Ester > Acid... View Article
a. CO b. NO2 c. CO2 d. CFC Solution: Answer: (b) When fossil fuel is burnt nitrogen and dioxygen combine... View Article
a. 108.8 eV b. 81.6 eV c. 13.6 eV d. 95.2 eV Solution: Answer:(a) Second excitation energy means the electron... View Article
a. sp3 b. sp3d c. sp3d2 d. Sp3d3 Solution: Answer:(c) Hybridization can be predicted with the help of a steric... View Article
a. Cleaning cloth with water b. Using liquid H2O2 in dying clothes c. Using tetrachloroethane in laundries d. Using chlorine... View Article
Question:Are the statements true or false? Statement-1: Dihedral angle of H2O2 in gas is 90°. Statement-2: Dihedral angle of H2O2... View Article