Form 4 & 5 Chemistry: Free Trial*

G. 10 & 11

Chemistry

F. 4 & 5

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G. 10 & 11 / F. 4 & 5

Chemistry: Free Trial*

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1 / 10

1. What type of bonding is present in metals?

A. Covalent

B. Metallic

C. Hydrogen

D. Ionic

2 / 10

2. The neutrons of an atom are found...

A. in the nucleus of the atom

B. in orbit around the outside of the nucleus

C. in lines radiating out from the nucleus

D. dotted throughout the atom

3 / 10

3. The atomic number of an element is 11 and its mass number is 23. Pick the correct combination of protons, neutrons, and electrons.

A. p=12, n=11, e=11

B. p=12, n=12, e=11

C. p=11, n=12, e=11

D. p=11, n=11, e=12

4 / 10

4. We can react an acid and an alkali together to produce a salt. The correct name for this type of chemical reaction is...

A. neutralisation

B. oxidation

C. thermal decomposition

D. combustion

5 / 10

5. Choose the correctly balanced chemical equation from the list.

A. $PCl_{5} + 4H_{2}O \longrightarrow H_{3}PO_{4} + 5HCl$

B. $PCl_{5} + 4H_{2}O \longrightarrow H_{3}PO_{4} + HCl$

C. $PCl_{5} + 4H_{2}O \longrightarrow H_{3}PO_{4} + 5HCl$

D. $PCl_{5} + H_{2}O \longrightarrow H_{3}PO_{4} + HCl$

6 / 10

6. I make a solution of sodium hydroxide, NaOH, which has a concentration of 0.2 $moldm^{-3}$. What is its concentration in $gdm^{-3}$ ?

($A_{r}$: Na: 23; O: 16; H: 1)

A. 40 $gdm^{-3}$

B. 8 $gdm^{-3}$

C. 0.2 $gdm^{-3}$

D. 200 $gdm^{-3}$

7 / 10

7. I dissolve 10g of NaOH in 100 $cm^{3}$ of water. Which is the correct concentration in both $gdm^{-3}$ and $moldm^{-3}$?

A. 100 $gdm^{-3}$; 0.4 $moldm^{-3}$

B. 1 $gdm^{-3}$; 4 $moldm^{-3}$

C. 100 $gdm^{-3}$; 2.5 $moldm^{-3}$

D. 1 $gdm^{-3}$; 0.025 $moldm^{-3}$

8 / 10

8. Electrons are found...

A. in lines radiating out from the nucleus

B. in the nucleus of an atom

C. dotted throughout the atom

D. in shells orbiting the nucleus

9 / 10

9. What is the electronic configuration for an $Na^{+}$ ion?

A. 2:8:7

B. 2:8

C. 2:7

D. 2:8:8

10 / 10

10. What type of bonding occurs when electrons are shared between the atoms in a molecule?

A. Hydrogen

B. Metallic

C. Ionic

D. Covalent

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