Class XI

Upon burning, Hydrogen (H2) forms
  1. water vapors
  2. hydrogen oxide
  3. hydrogen ions
  4. hydrocarbon
Liquid-liquid immiscible mixtures can be separated through
  1. chromatography
  2. fractional distillation
  3. separating funnel
  4. vacuum distillation
Substances inside fire extinguishers are examples of
  1. ionic bonds
  2. covalent bonds
  3. metallic bonds
  4. dative bond
Organic solvents are
  1. Organic solvents are
  2. non-polar solvents
  3. donors of Hydrogen ions
  4. formed through sigma bonds
 If graphite (C) is used as electrode in presence of concentrated Hydrochloric Acid (HCl), at anode
  1. chlorine gas is produced
  2. oxygen gas is produced
  3. hydrogen gas is produced
  4. hydrogen chloride is produced
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