Chemistry - Single MCQs (Page 46)

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Q451. Which of the Carbon Compounds is used as fire extinguisher ?...Q452. The macro-nutrient provided by inorganic fertilization are ?...Q453. Which one of the following is not used to dope a semiconductor ?...Q454. Which of the following gases is used for refrigeration?...Q455. The acid use in lead storage cells is?...Q456. The element common to all acids is?...Q457. Aluminium is obtained by the electrolysis of pure Al2O3 dissolved in?...Q458. Photoelectric effect is?...Q459. When a particle and an antiparticle come in contact with each other, they?...Q460. In nuclear reactions, there is conservation of ?...