Bihar Board 12th Biology Objective Questions and Answers Bihar Board 12th Biology Objective Answers Chapter 12 Biotechnology and its Applications Question 1. All are the biotechnological applications in order to increase food production except (a) apiculture (b) agro-chemical based agriculture…
Bihar Board 12th Physics Objective Questions and Answers Bihar Board 12th Physics Objective Answers Chapter 10 Wave Optics Question 1. The idea of secondary wavelets for the propagation of a wave was first given by (a) Newton (b) Huygens (c)…
Bihar Board 12th Physics Objective Questions and Answers Bihar Board 12th Physics Objective Answers Chapter 6 Electromagnetic Induction Question 1. In the figure, galvanometer G gives maximum deflection when (a) magnet is pushed into the coil (b) magnet is rotated…
Bihar Board 12th Physics Objective Questions and Answers Bihar Board 12th Physics Objective Answers Chapter 9 Ray Optics and Optical Instruments Question 1. What can be the largest distance of an image of a real object from a convex mirror…
Bihar Board 12th Physics Objective Questions and Answers Bihar Board 12th Physics Objective Answers Chapter 5 Magnetism and Matter Question 1. The primary origin of magnetism lies in (a) atomic current and intrinsic spin of electrons. (b) polar and non…
Bihar Board 12th Chemistry Objective Questions and Answers Bihar Board 12th Chemistry Objective Answers Chapter 7 The p-Block Elements Question 1. Nitrogen shows different oxidation states ranging from (a) -3 to +5 (b) -5 to + 5 (c) 0 to…
Bihar Board 12th Chemistry Objective Questions and Answers Bihar Board 12th Chemistry Objective Answers Chapter 10 Haloalkanes and Haloarenes Question 1. Which of the following is a primary halide ? (a) iso-Propyl iodide (b) sec-Butyl iodide (c) tert-Butyl bromide (d)…
Bihar Board 12th Biology Objective Questions and Answers Bihar Board 12th Biology Objective Answers Chapter 4 Reproductive Health Question 1. RCH stands for (a) routine check-up of health (b) reproduction cum hygiene (c) reversible contraceptive hazards (d) reproductive and child…
Bihar Board 12th Chemistry Objective Questions and Answers Bihar Board 12th Chemistry Objective Answers Chapter 15 Polymers Question 1. Glycogen, a naturally occuring polymert stored in animals is a (a) monosaccharide (b) disaccharide (c) trisaccharide (d) polysaccharide Answer: (d) polysaccharide…
Bihar Board 12th Chemistry Objective Questions and Answers Bihar Board 12th Chemistry Objective Answers Chapter 9 Coordination Compounds Question 1. Copper sulphate dissolves in ammonia due to the formation of (a) Cu2O (b) [Cu(NH3)4]SO4 (c) [Cu(NH3)4]OH (d) [Cu(H2O)4]SO4 Answer: (b)…
Bihar Board 12th Biology Objective Questions and Answers Bihar Board 12th Biology Objective Answers Chapter 11 Biotechnology: Principles and Processes Question 1. Who is the father of genetic engineering ? (a) Steward Linn (b) Stanley Cohen (c) Paul Berg (d)…