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Give one example each of the following:(i) A molecule containing a single covalent bond
(ii) A molecule containing a double covalent bond
(iii) A molecule containing a triple covalent bond
(iv) A compound containing an ionic bond
(i) Hydrogen is the molecule containing a single covalent bond.
(ii) Oxygen is the molecule containing a double covalent bond.
(iii) Nitrogen is the molecule containing a triple covalent bond.
(iv) Sodium chloride is the molecule containing an ionic bond.
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- (a) What is a covalent bond? What type of bond exists in (i) CCl4, and (ii) CaCl2?(b) What is an ionic bond? What type of bond is present in oxygen molecule?
- Explain Covalent Bond.
- What is a covalent bond? What type of bond exists in (i) CCl4 (ii) CaCl2?
- Fill in the blanks in the following sentences:(i) Two atoms of the same element combine to form a molecule. The bond between them is known as _____ bond. (ii) Two chlorine atoms combine to form a molecule. The bond between them is known as _____. (iii) In forming oxygen molecule, _____ electrons are shared by each atom of oxygen. (iv) In forming N2 molecule, _____ electrons are shared by each atom of nitrogen.(v) The number of single covalent bonds in C2H2 molecule are _____.(vi) Melting points and boiling points of ionic compounds are generally _____ than those of covalent compounds.
- A molecule of ammonia (NH3 ) has(a) only single bonds(b) only double bonds(c) only triple bonds(d) two double bonds and one single bond
- Explain the nature of the covalent bond using the bond formation in CH3Cl.
- (a) Name one ionic compound containing chlorine and one covalent compound containing chlorine.(b) How will you find out which of the water soluble compound A or B is ionic?
- Name a carbon containing molecule which has two double bonds.
- (a) Write names and formulae of hydrocarbons containing a single and a double bond (one example for each). Give one characteristic chemical property of each. (b) What is a detergent? Name one detergent. (c) Why have detergents replaced soap as a washing agent?
- (a) Give IUPAC names and formulae of an organic compound containing single bonds and the other containing a triple bond.(b) Which of the following is the molecular formula of benzene? C6H6 , C6H10 , C6H12 , C6H14 (c) Which of the two has a branched chain: isobutene or normal butane?
- (a) Giving one example each, state what are (i) ionic compounds, and (ii) covalent compounds.(b) Compare the properties of ionic compounds and covalent compounds.
- Which of the following can have a triple bond?C2H4 ; C3H4 ; C3H6
- State one major difference between covalent and ionic bonds and give one example each of covalent and ionic compounds.
- (a) What type of chemical bond is present in chlorine molecule? Explain your answer.(b) Explain the formation of a chlorine molecule on the basis of electron theory of valency.
- (a) What is an atom? How do atoms usually exist?(b) What is a molecule? Explain with an example.(c) What is the difference between the molecule of an element and the molecule of a compound? Give one example of each.
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