KS3 Reactions - L1, L2, L3

Alkali metals are found in which group of the periodic table?

• Group 1
• Group 2
• Group 7
• group 8 

Which of the following is the most reactive in water?

• Lithium
• Sodium
• Potassium

What is formed when sodium reacts with water?

• sodium oxide and hydrogen
• sodium hydroxide and hydrogen
• sodium hydroxide and oxygen
• sodium hydroxide and carbon dioxide

Which of the following statements is true?

• In a chemical reaction atoms are created
• In a chemical reaction atoms are destroyed
• In a chemical reaction the arrangement of the atoms is changed
• In a chemical reaction the arrangement of the atoms remains the same, but the physical state (solid,liquid,gas) changes

Which of the following is NOT an alkali metal

• Li
• Cl
• K
• Cs

What is another name for the elements in group 7?

• The Halogens
• The Noble gases
• The Oxides
• The Alkali Metals

When an alkali metal reacts with water, the hydroxide produced dissolves to form and alkaline solution, True or False?

• True
• False

Which of the "Halogens" is found in liquid state at room temperature?

• Flourine

• Astatine

• Iodine

• Bromine

Tags

NGSS.MS-PS1-4

Which "Halogen" can able to replace Chlorine in Sodium Chloride?

• Flourine

• Bromine

• Iodine

• Astatine

Alkali are so reactive to air they are generally stored in what?

• Water

• Oil

• Vaults

• Cotton

• a vacuum