Chemistry 9 Chapter 4 - Structure of Molecules -3

Chemistry 9 Chapter 4 - Structure of Molecules -3

1. The forces of attraction that bind oppositely charged ions are called as?

a) Coordinate bonds
b) Covalent bonds
c) Hydrogen bonds
d) Ionic bonds

2. Sulphur has the atomic number 16. How many electrons are needed to complete its octet?

a) 3
b) 2
c) 1
d) 4

3. Cations have ___ charges?

a) Negative
b) None of these
c) Positive
d) Both of these

4. Compounds that consist of ions joined by electrostatic forces are called as?

a) Ionic compounds
b) Alkali metals
c) Covalent compounds
d) Nobel gases

5. Ionic compounds are?

a) Electrically neutral
b) Positively charged
c) Negatively charged
d) None of these

6. Metal atoms form?

a) Both of these
b) Anions
c) None of these
d) Cations

7. Which one of the following is an ionic compound?

a) AlCl₃
b) NaF
c) All of these
d) MgO

8. At room temperature, the HCl is?

a) Solid
b) Liquid
c) Gas
d) Semisolid

9. Nonmetals don't lose electrons because they have?

a) High ionization energies
b) High electro negativities
c) High shielding effects
d) Low ionization energies

10. Which one of the following is a metal?

a) Br
b) F
c) Mg
d) Cl

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