Question : Which among the following is not an alkali metal and does not belong to group 1 of the periodic table?
Option 1: Calcium
Option 2: Lithium
Option 3: Sodium
Option 4: Potassium
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Correct Answer: Calcium
Solution : The correct answer is Calcium.
Calcium is not an alkali metal, and it does not belong to group 1 of the periodic table. Calcium is one of the alkaline earth metals of group 2 of the periodic table. It has an atomic number 20, and it is represented by Ca. Our body needs calcium to build and maintain strong bones. Other alkaline earth metals are Beryllium, Magnesium, Strontium, Barium, etc.
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Question : Which of the following is a non-metal that can exist in different forms?
Option 1: Mercury
Option 2: Carbon
Option 3: Lithium
Question : Which among the following is a covalent compound?
Option 1: Calcium chloride
Option 2: Magnesium fluoride
Option 3: Sodium chloride
Option 4: Carbon tetrachloride
Option 1: Hydrogen chloride
Option 2: Magnesium hydroxide
Option 3: Calcium carbonate
Option 4: Sodium chloride
Question : Which of the following is an example of micronutrient supplied by soil?
Option 1: Potassium
Option 2: Iron
Option 3: Calcium
Option 4: Sulphur
Question : Which among the following elements does not belong to the Halogens group?
Option 1: Astatine
Option 2: Helium
Option 3: Bromine
Option 4: Chlorine
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