Table of Contents
Bihar Police (Forester) Recruitment Exam – 20.12.2020
- What is the oxidation state of hydrogen in CaH₂? – -1
- CH₃CONH₂ is an example of what? – Amide
- The Atal Pension Yojana was launched by the central government for the welfare of whom? – Unorganised sector workers
- Under which article does the Supreme Court’s power of judicial review come? – Article 137
- In tissue culture, which type of tissue is used to grow virus-free plants in vitro? – Meristematic tissue
- What is the SI unit of energy? – Joule
- The production of ethyl chloride from ethylene is an example of what type of reaction? – Additive reaction
- What is the unit of entropy? – JK⁻¹ mol⁻¹
- Who discovered the Oral Polio Vaccine (OPV)? – Albert Bruce Sabin
- Which organelle is known as the ‘suicidal bag’ of the cell? – Lysosome
- Which organelle contains DNA? – Nucleus
- Which metal has the highest tendency to form metal oxides? – Calcium
- Which portal aims for a child-labor-free society? – ‘PENCIL’
- Who declared the 1857 revolt as a national revolution? – Benjamin Disraeli
- California is located on which coast of North America? – West Coast
- Where is the Corpora Quadrigemina located? – Brain
- What are the major greenhouse gases? – Carbon dioxide, methane
- Which carbohydrate is considered the energy reserve in animals? – Glycogen
- Which planet is known as the ‘Red Planet’? – Mars
- Which group of organisms helps in increasing soil fertility? – Cyanobacteria
- Which polymer does not soften on heating? – Bakelite
- Hydrocarbons with a C=C bond in an open chain are called what? – Alkenes
- According to Newton’s third law, how do forces and counter-forces act? – They act in opposite directions on different objects
- Gregor John Mendel worked on which plant to formulate the laws of genetics? – Pea plant
- In chiropterophily, who carries out the pollination of fruits? – Bats
- What is the SI unit of magnetic field? – Tesla
- When a light ray enters from a denser medium to a rarer medium, what happens? – It bends away from the normal
- When nucleic acids behave like enzymes, they are called what? – Ribozymes
- When white light passes through a prism, how many colors does it split into? – Seven colors
- What is done to genes in genetic engineering? – Manipulation
- What is the common name of the ‘Acorn Worm’? – Balanoglossus
- In which state was the Joginder Singh War Memorial inaugurated? – Arunachal Pradesh
- According to the Doppler Effect, what happens when the source moves towards the observer? – The frequency measured by the observer increases
- What is the frequency range of visible light? – 400 nm – 700 nm
- What is the loss of water through stomata called? – Transpiration
- Which tissue is responsible for secondary growth in plants? – Cambium
- What does the phenomenon of diffraction of light demonstrate? – The transverse nature of light
- What are the filtration units present in each kidney? – Nephrons
- Who proposed the theory of natural selection? – Charles Darwin
- What makes Plaster of Paris hard when mixed with water? – Water
- What type of energy is stored in water in a dam? – Potential energy
- Which language in Bihar has been granted constitutional status? – Maithili
- What is the national calendar of India? – Saka Calendar
- When was the first census in India conducted? – 1872
- What is the ‘right to property’ as mentioned in the Indian Constitution? – A legal right
- In which movement did Gandhiji initiate the Quit India Movement in 1942? – Quit India Movement
- Where did Mahatma Buddha give his first sermon called ‘Dharmachakra Pravartana’? – Sarnath
- What will happen if a current flows through a spring? – The spring will contract
- According to the 2011 census, which is the second most populous city in India? – Delhi
- What is the unit of electric power? – Watt
- What is latent heat of fusion? – Latent heat for the phase transition from solid to liquid
- What is the fundamental principle of parliamentary government? – Collective responsibility
- How many S-S bonds are present in a sulfur trioxide (SO₃) molecule? – Zero
- What is dry ice? – Solid carbon dioxide
- What is hydrogen peroxide? – Both an oxidizing and a reducing agent
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