All Questions page - 7

Which of the following represents Reduction?
[A] Losing one or more electrons
[B] Gaining one or more electrons
[C] Losing Hydrogen atoms
[D] Liberating hydrogen gas

Which of the following is / are correct statements about unsaturated carbon compounds?
1. They have either double or triple bonds between the carbon atoms
2. They are more reactive than the saturated carbon compounds
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

Which of these is also known as isobutane?
[A] 2-Methylpropane
[B] 1-Methylpropane
[C] 3-Methylpropane
[D] Butane

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

Which of the following non-metal is used for bleaching woodpulp?
[A] Argon
[B] Chlorine
[C] Fluorine
[D] Gallium

Which of these non-metals is mainly used as an inert shielding gas?
[A] Xenon
[B] Hydrogen
[C] Argon
[D] Krypton

Which of these non-metals is commonly used in fire-crackers?
[A] Silicon
[B] Neon
[C] Sulphur
[D] Fluorine

Which of these gases is produced on addition of Baking soda to food items?
[A] Helium
[B] Hydrogen
[C] Carbon dioxide
[D] Nitrogen

Which of the following gas is responsible for burning of eyes when we cut an onion?
[A] Chlorine
[B] Helium
[C] Sulphur
[D] Methane