Welcome to your Chem Quiz-1
1) Which of the following elements is a noble gas?
2) What is the relative formula mass (Mr) of water (H₂O)?
3) Which of the following substances is an example of an ionic compound?
4) What is the electron configuration of a magnesium atom (Mg)?
5) In the periodic table, elements in the same group have the same number of:
6) What type of bonding is present in methane (CH₄)?
7) Which of the following is a property of metals?
8) What is the main gas produced when hydrochloric acid reacts with magnesium?
9) Which of the following is a chemical change?
10) What is the pH of a neutral solution?
