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12th Board Chemistry Most VVI Objective Question Chemical Kinetics Chapter 4. CHEMICAL KINETICS 1. In any reaction, catalyst: (A) retards the rate of reaction (B) increases the rate of reaction (C) both increases and decreases the rate of reaction (D) none of these Answer :- (C) 2. In chemical equation H2(g) + I2 (g) ⇔ […]
BSEB 12th Chemistry VVI Objective Question Solutions Chapter 2. SOLUTIONS 1. Which of the following equations represents osmotic pressure ? (A) P = CRT (B) P= CT / R (C) P= RC / T (D) P = RT / C Answer :- (D) 2. By osmosis Semipermeable membrane (S.P.M.) allows to pass (A) solute molecules (B) […]
Class 12th Physics Chapter 10 Wave Optics VVI Objective Question Wave Optics 1. Electromagnetic wave can be Polarised by (A) a lens (B) a mirror (C) a polaroid (D) a prism Answer:- C 2. Bonding of light rays at sharp obstacles is called : (A) Refraction (B) Diffraction (C) Interference (D) Polarisation Answer:- B 3. If […]
Class 12th Physics Chapter 8 Electro-Magnetic Waves VVI Objective Question Electro-Magnetic Waves 1. Which has the longest wavelength? (A) Radio waves (B) X-rays (C) Ultraviolet rays (D) Infrared Answer:- A 2. Which of the following has a minimum wavelength? (A) X-Rays (B) Y-Rays (C) Micro Wave (D) Radio wave Answer:- B 3. The frequency range of […]
Class 12th Physics Chapter 6 Electromagnetic Induction VVI Objective Question ELECTROMAGNETIC INDUCTION 1. Unit of self-induction is (A) Weber Title (B) Ohm (C) Henry (D) Gauss Answer:- C 2. The direction of eddy current is obtained using (A) Kirchhoff’s laws (B) Lenz’s law (C) Planck’s law (D) none of these Answer:- B 3. Lenz’s law is […]
Class 12th Physics Chapter 3 Current Electricity Imoprtant Objective Question Current Electricity 1. Which one of the following is the best material for making connecting wires? (A) Nichrome (B) Tungsten (C) Copper (D) Manganese Answer:- C 2. Fuse-wire is made of which material ? (A) Copper (B) Tungsten (C) Lead-Tin Alloy (P) Nichrome Answer:- A 3. […]