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Online Short Questions For Chapter 1 "12th Class Chemistry Chapter 1 Short Questions Preparation "
Try The Short Questions For 12th Class Chemistry Chapter 1 Short Questions Preparation
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Total Questions10
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Available Sets3
Chemistry - 12th Class Chemistry Chapter 1 Short Questions Preparation
Question # 1
Define Metalloid.
- Ans 1: Metalloid: Some elements,especially lower members of groups,IIA,IVA and VA have properties of both metals as well as non-metals.These elements are called metalloids.
12th Class Chemistry Chapter 1 Short Questions Preparation - Set 1
Question # 1
Define Metalloid.
- Ans 1: Metalloid: Some elements,especially lower members of groups,IIA,IVA and VA have properties of both metals as well as non-metals.These elements are called metalloids.
12th Class Chemistry Chapter 1 Short Questions Preparation - Set 2
Question # 1
Lonic radii of negative ion is always bigger in size than its parent atom.Why?
- Ans 1: The reason is that addition of one or more electrons in the shell of a neutral atom enhances repulsion between the electrons causing expansion of the shell.For example the radius of fluorine atom is 72 pm and that of the fluoride ion F ion is 136 pm.
12th Class Chemistry Chapter 1 Short Questions Preparation - Set 3
Question # 1
Why metallic character increases from top to bottom in a group of metals?
- Ans 1: Metallic character increases from top to bottom in a group because from top to bottom atomic size of atoms increases and it is easier to remove the electron of an atom bigger in size.
12th Class Chemistry Chapter 1 Preparation
Here you can prepare 12th Class Chemistry Chapter 1 Periodic Classification of Elements and Periodicity. Click the button for 100% free full practice Preparation.
