Class XI

A shared pair of electrons like Cl2 forms
  1. Ionic bonds
  2. Single covalent bond
  3. Double covalent bond
  4. Dative bond
 Weak acids include
  1. H2CO3
  2. H2SO3
  3. H2SO4
  4. Both A and B
Chemical formula of aluminum oxide is
  1. Al2O3
  2. AlO4
  3. Al2O5.H2O
  4. Al2O5
Chemical formula of monohydrate monosodium phosphate is
  1. H2ONaPO2
  2. PO2NaH2O
  3. NaH2PO4.H2O
  4. NaH3PO2.H2O
Suitable apparatus to measure volume of gas given off is
  1. A tap funnel
  2. A conical beefle
  3. A graduated cylinder
  4. A gas syringe
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