Which of these is also known as isobutane? [A] 2-Methylpropane [B] 1-Methylpropane [C] 3-Methylpropane [D] Butane
Adv.
2-Methylpropane
Which of the following represents Isocyanic acid? [A] HNCO [B] CNO [C] HCO [D] HNC
What do we get when we pass phenol vapours over zinc dust? [A] Methane [B] Ethene [C] Toluene [D] Benzene
Which of these alkanes has higher boiling point? [A] Butane [B] Methane [C] Ethane [D] Hexane
Which of the following chemical is produced when Ethene reacts with cold aqueous solution of Bayer’s reagent? [A] Methanol [B] Glycol [C] Methanal [D] Ethyne
What is the main constituent of Bio gas? [A] Methane [B] Butane [C] Ethyne [D] Nitrogen dioxide
Which of these metals is commonly used in tanning of leather? [A] Phosphorous [B] Indium [C] Manganese [D] Chromium
Which of these metals is most commonly used as control rods in the nuclear reactors? [A] Platinum [B] Cadmium [C] Cobalt [D] Silver
Which of these is the only metal that is liquid at ordinary room temperature and pressure? [A] Copper [B] Zinc [C] Mercury [D] Beryllium
Which of the following non-metal has an isotope which can be used to detect secret nuclear fuel reprocessing facilities? [A] Selenium [B] Tellurium [C] Neon [D] Krypton
Which of the following non-metals is used in the manufacturing of match sticks? [A] Carbon [B] Nitrogen [C] Sulphur [D] Phosphorous
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