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You Are On Multi Choice Question Bank SET 2436
121801. The refrigerant commonly used in domestic refrigerator is:
(A): Neon (B): None of the above (C): Ammonia (D): Alcohol
121802. Who discovered the element of oxygen
(A): Cavendish (B): Dalton (C): Priestley (D): Alfred Nobel
121803. The most important stimulus in tea leaves is :
(A): None of the above (B): Phenylalanine (C): Brucine (D): Caffeine
121804. In quick setting cement, the compound added is
(A): Calcium sulphate (B): Gypsum (C): Aluminium silicate (D): Aluminium sulphate
121805. Marie Curie won a Nobel Prize for her study of what
(A): Aurum (B): Plutonium (C): Radium (D): Uranium
121806. Thermal pollution is the rise in the temperature of a natural water body caused by human influence. Elevated water temperature
(A): May increase or decrease oxygen level (B): Does not affect oxygen level (C): Decreases oxygen level (D): Increases oxygen level
121807. A vessel in the shape of a cube contains one litre of water what is the length of its side:
(A): 100 cm (B): 20 cm (C): 25 cm (D): 10 cm
121808. Atoms can neither be created nor destroyed. This principle was given by __?
(A): Niels Bohr (B): Rutherford (C): Dalton (D): Avogadro
121809. 2,4-D, which is sold as a weed killer of the broad-leaved weeds is a synthetic version of __:
(A): None of them (B): Xylitol (C): Cytokinin Hormone (D): Auxin Hormone
121810. The aqueous solution of which among the following acids is called Vinegar?
(A): Hydrochloric acid (B): Acetic acid (C): Citric acid (D): Oxalic acid
121811. Which among the following is the correct decreasing of bioelements in Human Body?
(A): carbon, oxygen, hydrogen, nitrogen, calcium, and phosphorus (B): oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus (C): oxygen, carbon, nitrogen, hydrogen, calcium, and phosphorus (D): oxygen, hydrogen, Carbon, nitrogen, calcium, and phosphorus
121812. Which among the following happens in an oxidation reaction ?
(A): Protons are lost (B): Protons are gained (C): Electrons are lost (D): Electrons are gained
121813. Identify the thermosetting plastic from the given options:
(A): Casseine (B): Polyvincychloride (C): Bakelite (D): Polythene
121814. White Phosphorous is represented by which among the following symbols?
(A): P4 (B): P3 (C): P2 (D): P1
121815. Which among the following is called Laughing Gas popularly?
(A): Nitric oxide (B): Nitrous oxide (C): Nitrogen penta oxide (D): Nitrogen
121816. Identify the non-metallic mineral from the given options:
(A): Manganese (B): Magnesium (C): Silica (D): Bauxite
121817. The aqueous solution of which acids is called Vinegar ?
(A): Acetic acid (B): Hydrochloric acid (C): Citric acid (D): Oxalic acid
121818. Which have maximum number of isotopes ?
(A): Bromine (B): Aluminium (C): Polonium (D): Carbon
121819. What is used to avoid melting of ice ?
(A): Gelatine (B): Butane (C): Methane (D): Any acid
121820. Oxides of metals are alkaline.
(A): TRUE (B): FALSE
121821. What is metallurgy ?
(A): process of extracting metal in pure form from its ore. (B): process of creating alloys of metals. (C): process of making metals live long. (D): None of above.
121822. Acids taste
(A): Sour (B): Sweet (C): May be both (D): None of both
121823. Acid rain is due to air pollution by ?
(A): Carbon dioxide (B): Carbon monoxide (C): Methane (D): Nitrous oxide and Sulphur dioxide
121824. The major component used in preparation of different types of glasses is :
(A): Sodium borate (B): Sodium silicate (C): Silica (D): Calcium silicate
121825. How many different oxides are formed by nitrogen ?
(A): two (B): three (C): four (D): five
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