Bihar Board 12th Chemistry Objective Questions and Answers Bihar Board 12th Chemistry Objective Answers Chapter 13 Amines Question 1. Nitrogen atom of amino group is……….. hybridised. (a) sp (b) sp2 (c) sp3 (d) sp3d Answer: (c) sp3 Question 2. C3H9N…
Bihar Board Class 12th Hindi Book Solutions Bihar Board Class 12th Hindi रचना निबंध लेखन 1. भारत के प्रथम राष्ट्रपति : देशरत्न राजेन्द्र प्रसाद अपनी सादगी, पवित्रता, सत्यनिष्ठा, योग्यता और विद्वान से भारतीय ऋषि परम्परा को पुनर्जीवित कर देने वाले,…
Bihar Board Class 12th Hindi Book Solutions Bihar Board Class 12th हिन्दी भाषा और साहित्य की कथा प्रश्न 1. हिन्दी साहित्य के इतिहास का संक्षिप्त परिचय दीजिए। उत्तर- हिन्दी साहित्य का प्रारंभ सन् 1050 से माना जाता है। यद्यपि इस…
Bihar Board 12th Chemistry Objective Questions and Answers Bihar Board 12th Chemistry Objective Answers Chapter 12 Aldehydes, Ketones and Carboxylic Acids Question 1. Which of the following structures is not correctly matched ? Answer: (c) Question 2. Which of the…
Bihar Board 12th Maths Objective Questions and Answers Bihar Board 12th Maths Objective Answers Chapter 10 Vector Algebra Question 1. If are the direction cosines of a line, then the value of n is (a) (b) (c) (d) Answer: (a)…
Bihar Board 12th Biology Objective Questions and Answers Bihar Board 12th Biology Objective Answers Chapter 14 Ecosystem Question 1. Term ‘ecosystem’ was coined by (a) Odum (b) Tansley (c) Lindeman (d) Elton. Answer: (b) Tansley Question 2. Which of the…
Bihar Board 12th Maths Objective Questions and Answers Bihar Board 12th Maths Objective Answers Chapter 7 Integrals Question 1. Evaluate: ∫(2tan x – 3cot x)2 dx (a) -4tan x – 9cot x – 25x + C (b) 4tan x –…
Bihar Board 12th Hindi Model Papers Bihar Board 12th Hindi 50 Marks Model Question Paper 1 समय 1 घंटे 37.5 मिनट पूर्णांक 50 परीक्षार्थियों के लिए निर्देश परीक्षार्थी यथा संभव अपने शब्दों में उत्तर दें। दाहिनी ओर हाशिये पर दिये…
Bihar Board 12th Physics Objective Questions and Answers Bihar Board 12th Physics Objective Answers Chapter 8 Electromagnetic Waves Question 1. Maxwell in his famous equations of electromagnetism introduced the concept of (a) ac current (b) displacement current (c) impedance (d)…
Bihar Board 12th Chemistry Objective Questions and Answers Bihar Board 12th Chemistry Objective Answers Chapter 11 Alcohols, Phenols and Ethers Question 1. IUPAC name of (a) 3-propylbutan-l-ol (b) 2-ethylpentan-l-ol (c) 3-methyl hydroxyhexane (d) 2-ethyl-2-propyl ethanol Answer: (a) 3-propylbutan-l-ol Question 2.…
Bihar Board 12th Physics Objective Questions and Answers Bihar Board 12th Physics Objective Answers Chapter 7 Alternating Current Question 1. Alternating voltage (V) is represented by the equation (a) V(t)=Vmewt (b) V(t) = Vm sinωt (c) V(t) = Vm cosωt…