Science Practice Quiz 31

Q1.How many protons are present in the nucleus of a chlorine atom?

A. 16 B. 17 C. 18 D. 19

Q2.What type of forces hold sodium and chloride ions together in sodium chloride (NaCl)?

A. Covalent forces B. Van der Waals forces C. Strong electrostatic forces of attraction D. Metallic bonds

Q3.How many electrons are present in the K, L, and M shells of a chloride anion (Cl–)?

A. 17 B. 16 C. 18 D. 19

Q4.According to the provided text, compounds formed by the transfer of electrons from a metal to a non-metal are known as?

A. Covalent compounds B. Metallic compounds C. Ionic compounds D. Organic compounds

Q5.What is an alternative term for 'ionic compounds' mentioned in the source text?

A. Molecular compounds B. Electrovalent compounds C. Coordinate compounds D. Amorphous compounds

Q6.Based on the formation of magnesium chloride (MgCl2) described in the text, which ion represents the cation?

A. Cl- B. Mg2+ C. Cl2+ D. Mg-

Q7.Based on the formation of magnesium chloride (MgCl2) described in the text, which ion represents the anion?

A. Cl- B. Mg2+ C. Cl2+ D. Mg-

Q8.According to Table 3.4 in the provided text, which of the following ionic compounds has the highest melting point?

A. NaCl B. LiCl C. CaCl2 D. CaO

Q9.According to Table 3.4 in the provided text, which of the following ionic compounds has the highest boiling point?

A. NaCl B. LiCl C. CaCl2 D. CaO

Q10.Which of the following metals is found in the free state in nature?

A. Iron B. Zinc C. Gold D. Lead