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Chemistry Class 12 Chapter 2
S-Block Elements
Test 10
1.
Second ionization potential of alkali metals are very high due to?
they are non-metals
ns’ electronic configuration
These are s-block elements
Inert gas configuration
2.
Which one is not the application of lime?
For neutralization of acidic soil
In soda water bottles
For making lime sulphur sprays
For increasing the amount of phosphorous
3.
For purification of sugar which compound is used?
Lime
Sulphuric acid
Gypsum
Soda water
4.
In the manufacturing of alcohol lime is used as a?
Reducing agents
Dehydrating agents
Oxidizing agent
Hygroscopic agent
5.
Milk of lime is known as?
Suspension of calcium hydroxide
Suspension of sodium hydroxide
Mixture of water gas and carbon dioxide
None of these
6.
Which one of the following is not alkali metal?
Cesium
Rubidium
Francium
Radium
7.
The element cesium bears resembles with?
Both of the above
None of these
Ca
Cr
8.
Gypsum is applied to the soil as a source of?
S
Ca & S
We could not do that
Ca
9.
Calcium is used for plant as a?
For stimulation of root hairs
For normal growth of plants
All of these
Optimum activity of microorganisms
10.
Magnesium metal does not burns in the vessel containing?
Helium
Nitrogen & oxygen
Oxygen
Nitrogen
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