a. \(\begin{array}{l}(CH_{3}CO)_{2}\: \ddot{N}H\end{array} \) b. \(\begin{array}{l}(CH_{3}CO)\: \ddot{N}H\: C_{2}H_{5}\end{array} \) c. \(\begin{array}{l}(C_{2}H^{5})_{3}\: \ddot{N}\end{array} \) d. \(\begin{array}{l}(C_{2}H^{5})_{2}\: \ddot{NH}\end{array} \) Answer: (a) Due... View Article
In the below reaction, the reagent “A” is: a. NaBH4, H3O+ b. HCl, Zn-Hg c. Alkaline KMnO4, H+ d. LiAlH4... View Article
1. Carbon dioxide 2. Oxygen 3. Water vapour 4. Methane Choose the most appropriate answer from the options given below:... View Article
(1) used in the treatment of effluents. (2) used as both oxidizing and reducing agents. (3) the two hydroxyl groups... View Article
a. Melamine formaldehyde resin b. Cis-poly isoprene c. Phenol and formaldehyde resin d. Urea-formaldehyde resin Answer: (a) Melamine formaldehyde resin... View Article
a. Statement I is true but statement II is false b. Both statement I and statement II are false c.... View Article
An unsaturated hydrocarbon X on ozonolysis gives A. Compound A when warmed with ammoniacal silver nitrate forms a bright silver... View Article
a. Fe2O3 → Fe b. ZnO → Zn c. Al2O3 → Al d. Cu2O → Cu Answer: (c) Al is... View Article
a. 100 mL and 50 mL b. 50 mL and 50 mL c. 100 mL and 100 mL d. 100... View Article
a. X and Z are non-metals and Y is a metalloid. b. X and Y are metalloids and Z is... View Article
a. A colloidal solution shows colligative properties b. An ordinary filter paper can stop the flow of colloidal particles c.... View Article
Identify the elements X and Y using the ionization energy values given below: Ionization energy (kJ/mol) – 1st 2nd X... View Article
(Atomic numbers Ce = 58, Gd = 64 and Eu = 63) (1) (NH4)2[Ce(NO3)6] (2) Gd(NO3)3 (3) Eu(NO3)3 a. (1)... View Article
a. to remove basic impurities b. to activate NH3 used in the reaction c. to increase the reactivity of alkyl... View Article
The structure of X is: Answer: (a) Hence the answer is a
Match List-I with List-II: List-I Test/Reagents/Observation(s) List-II Species detected (a) Lassaigne’s Test (i) Carbon (b) Cu(II) oxide (ii) Sulphur... View Article
a. It contains 12 six-membered rings and 24 five-membered rings. b. Each carbon atom forms three sigma bonds. c. The... View Article
Identify the reagent(s) ‘A’ and condition(s) for the reaction: a. A = HCl; Anhydrous AlCl3 b. A = HCl, ZnCl2... View Article
Four identical rectangular plates with length, l =2 cm and breadth, b = 3/2 cm are arranged as shown in... View Article
(Assuming the acceleration to be uniform). Answer: (728) \(\begin{array}{l}\omega _{f}=2460\times \frac{2\pi }{60}\end{array} \) = 82π rad/second \(\begin{array}{l}\omega _{i}=\frac{900\times2\pi }{60}= 30\pi... View Article
