XI Chemistry Unit 5 Part 4

Alkaline earth metals exhibit _____ oxidation state in their compounds

• +1

• +2

• +3

• -2

The radioactive element of group 2 element is _____.

• Strontium

• Beryllium

• Radium

• Magnesium

_____ is a group 2 element which shows diagonal relationship with aluminium.

• Ba

• Mg

• Ca

• Be

. General electronic configuration of 2s block elements is _____.

• ns²

• ns¹

• ns²np²

• np¹

The polarizing power of Mg is almost same as _____.

• Li

• Na

• K

• Rb

Which alkaline earth metal do not import colour to a non-luminous flame?

• Beryllium

• Calcium

• Magnesium

• Barium

Which one of the following is the most common alkaline earth metal found in the human body ?

• Beryllium

• Magnesium

• Barium

• Calcium

In fireworks red colour flash is produced by _____.

• Ba

• Ra

• Sr

• Rb

Copper chloride produces _____ colour in fireworks.

• red

• green

• blue

• yellow

Celestite is the ore of _____.

• Cesium

• Strontium

• Magnesium

• Barium