chap5_class1

Which of the following substance is an ionic compound?

Berikut bahan yang manakah ialah sebatian ion?

• Ethanol

  Etanol

• Sulphur dioxide

  Sulfur dioksida

• Magnesium oxide

  Magnesium oksida

• Tetrochloromethane

  Tetraklorometana

Which substance is a covalent compound?

Bahan yang manakah ialah sebatian kovalen?

• Aluminium oxide

  Aluminium oksida

• Copper(II) sulphate

  Kuprum(II) sulfat

• Naphthalene

  Naftalena

• Magnesium chloride

  Magnesium klorida

The formula of ion for element X and Y are X³⁺, Y^2-. Which of the following equation represents the reaction between X and Y?

Formula ion bagi unsur X dan Y ialah X³⁺, Y^2-. Persamaan yang manakah mewakili tindak balas antara X dan Y?

• 2X + 3Y → X₂Y₃

• 4X + 3Y₂ → 2X₂Y₃

• 3X + Y₂ → X₃Y₂

• 3X + 2Y → X₃Y₂

Which molecule has a double covalent bond between its atom?

Molekul manakah mempunyai ikatan kovalen ganda dua di antara atomnya?

[Proton Number: H =1, N =7, O =8, Cl = 9]

• nitrogen

  nitrogen

• oxygen

  oksigen

• hydorgen

  hidrogen

• fluorine

  fluorin

Diagram shows the electron arrangement of a compound formed between atom P and atom Q. Which of the following statements is true about the compound?

Rajah menunjukkan susunan elektron bagi sebatian yang terbentuk antara atom P dan atom Q. Pernyataan manakah yang benar mengenai sebatian tersebut?

• The compound is not stable

  Sebatian tersebut tidak stabil

• All atoms have achieved octet electron arrangement

  Semua atom telah mencapai susunan elektron oktet

• Q atoms share their valence electrons with P atom

  Atom Q berkongsi elektron valens dengan atom P

• The compound is formed by electron transfer

  Sebatian terbentuk melalui pemindahan elektron