Which of the following is not a strong electrolyte?
[A] HCl
[B] KOH
[C] H₂CO₃
[D] NaOH

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