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Chemistry Grade 9 Unit 5: CHEMICAL BONDING

national exam questions have come from this unit. It runs 36 pages; one careful study pass takes about 4.5 hours, and its difficulty is easier among Chemistry units. Each section below lists the questions set from it, with the year, and opens the page that teaches it.

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5.1 Chemical Bonding · read p. 141
Not asked in a national paper yet.
5.2 Ionic Bonding · read p. 143
  • 2015 E.C., Q32 – Which one of the following is an ionic compound?
  • 2015 E.C., Q57 – Which of the following would occur during the formation of ions?
  • 2014 E.C., Q43 – How do the elements of Group IIA form ions?
  • 2009 E.C., Q4 – What is the chemical formula of the compound formed by aluminium (III) and sulphate ion, $\mathrm{SO_4^{2-}}$ ?
  • 2007 E.C., Q2 – The type of compound that is most likely to contain a covalent bond is one that is
  • 2005 E.C., Q3 – Which of the following ionic compounds is formed from the reaction between magnesium and nitrogen?
5.3 Covalent Bonding · read p. 154
  • 2018 E.C., Q6 – Ammonium ion (NH₄⁺) is formed when ammonia (NH₃) reacts with a hydrogen ion (H⁺). Which statement correctly analyzes the bond formed in the ammonium ion (NH₄⁺)?
  • 2016 E.C., Q29 – Which of the following is CORRECT about the formation of a covalent bond? A covalent bond is formed
  • 2016 E.C., Q30 – The molecule of carbon tetrachloride (CCl 4 ) has four polar (C - Cl) bonds. However, CCl 4 is a non-polar molecule. Which of the following explains the reason for the observed property of CCl 4 ?
  • 2016 E.C., Q44 – A chemical bond that results from the attractive force between shared electrons and nonmetal nucleus is called _____.
  • 2014 E.C., Q42 – Which statement describes the formation of a covalent bond? In covalent bond electrons are
  • 2014 E.C., Q26 – Among the following reactions, which one shows a coordinate covalent bond formation?
  • 2013 E.C., Q38 – One of the following reactions illustrates the formation of coordinate covalent bond?
  • 2012 E.C., Q50 – Which one of the following is the formal charge on each atom in dichloromethane (CH2Cl2)?
  • 2009 E.C., Q3 – How many electrons are shared between two atoms in a double bond?
  • 2009 E.C., Q1 – Which of the following covalent bonds is the most polar?
  • 2005 E.C., Q4 – Which of the following molecules represents a non-polar covalent bond?
5.4 Metallic Bonding · read p. 167
  • 2017 E.C., Q12 – What is the bond formed between two or more atoms by sharing of electrons?
  • 2015 E.C., Q17 – Which one would be observed in a laboratory activity that is applied on naphthalene?
  • 2014 E.C., Q8 – Which of the following is a covalent molecule?
  • 2014 E.C., Q7 – Which of the following is a property of covalent compounds? Covalent compounds
  • 2012 E.C., Q16 – Which one of the following compounds contains both covalent and ionic bond?
  • 2011 E.C., Q34 – Which one of the following type of bonding exists between atoms with very different electro-negativities?
  • 2010 E.C., Q27 – Which of the following compounds does NOT contain an ionic bond?
  • 2007 E.C., Q38 – Which of the following compound does NOT follow the octet rule?
  • 2005 E.C., Q13 – Which of the following metals has the highest electrical and thermal conductivities?