Chemistry POP Quiz

Which substance has the arrangement of particles as shown by Diagram?

• Helium

• Magnesium

• Hydrogen

• Naphthalene

Which diagram shows the strongest attraction force between particles?

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What is the meaning of one mole of substance?

• The number of particle of any substance

• One mole of substance contains 6.02 x $10^{22}$ particles

• The mass of one mole of any substance is call relative atomic mass

• The amount of substance that contains as many particles as the number of atoms in exact 12 g of carbon-12

What is the vertical column in the periodic table?

• Number of valence electron

• Period

• Group

• Transition

Elements in the Periodic Table are arranged according to the

• nucleon number

• number of neutron

• number of electron

• proton number

Which elements form a covalent compound?

• Copper and Magnesium

• Carbon and Oxygen

• Sodium and Chloride

• Magnesium and sulphur

Which substance conduct electricity in molten state?

• Glucose

• Naphthalene

• Sulphur

• Potassium iodide

 $KOH\ +\ HCl\ \rightarrow\ KCl\ +\ H_2O$  
The chemical equation above represents a reaction.
What is the type of reaction?

• Neutralization

• Displacement of metal

• Precipitation

• Decomposition

Atom X has 18 neutrons. The electron arrangement of atom X is 2.8.7.
Which of the following statement is true about X?

• X has 18 electrons and 17 protons

• X has 18 nucleons and 17 electrons

• X has 35 nucleons and 17 protons

• X has 35 protons and 17 nucleons

The following statements are about atoms U and T.

- The electron arrangement of atom U is 2.5

- Proton number of atom T is 17

Which of the following is true about the compound formed between U and T?

• Atom U donates 5 electrons to atom T

• Atom U shares 5 electrons with atom T

• Atom U shares 3 electrons with atom T

• Atom T accepts 3 electrons from atom U