Professor247

  Chemical Bonding Q1. Choose the most appropriate answer from the following options: (i) Among the following compounds identify the compound that has all three types of bonds (ionic, covalent and coordinate bond). [2013][1] a.       Ammonia b.       Ammonium chloride c.       Sodium hydroxide d.       Calcium chloride Show Answer Ans. Ammonium chloride (ii) Which of the following is not a typical property of an ionic compound? [2013][1] a.       High melting point b.       Conducts electricity in the molten and in the aqueous solution state. c.       They are insoluble in water. d.       They exist as oppositely charged ions ...

Sulphuric Acid Q1. Choose the correct answer from the options given below: (i) When dilute sulphuric acid reacts with iron sulphide, the gas evolved is: [2011][1] a.       Hydrogen sulphide b.       Sulphur dioxide c.       Sulphur trioxide d.       Vapour of Sulphuric acid Show Answer Ans. a. Hydrogen sulphide (ii) In the given equation, identify the role played by conc. sulphuric acid. [2013][1] S +2H 2 SO 4 ----> 3SO 2 + 2H 2 O a.       Non- volatile acid b.       Oxidising agent c.       Dehydrating agent d.       none of the above Show Answer ...