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Class 11 Chemistry
The S-Block Elements
Quiz 1
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CsOH is
0%
Strongly basic
0%
Weakly basic
0%
Slightly acidic
0%
Amphoteric.
Explanation
Strongly basic
Alkali metals give a _________________when dissolved in liquid ammonia
0%
Deep blue solution
0%
Colourless
0%
Red colour
0%
None of the Above
Explanation
Deep blue solution
What are Oxo-Acids?
0%
Acid containing Oxygen
0%
Acid containing Sulphur
0%
Acid containing Carbon
0%
None of the Above
Explanation
Acid containing Oxygen
In curing cement plasters, water is sprinkled from time to time. This helps in
0%
Converting sand into silicic acid
0%
Keeping it cool
0%
Developing interlocking needle like crystals of hydrated silicates
0%
Hydrating sand and gravel mixed with cement.
Explanation
Developing interlocking needle like crystals of hydrated silicates
The substance not likely to contain CaCO
0%
Dolomite
0%
A marble statue
0%
Calcined gypsum
0%
Sea shells.
Explanation
Calcined gypsum
Carnallite is the mineral of:
0%
Na
0%
Ca
0%
Mg
0%
None of the Above
Explanation
Mg
The wire of flash bulb is made up of:
0%
Mg
0%
Ag
0%
Cu
0%
Ba
Explanation
Mg
The basic strength of which hydroxide is maximum
0%
LiOH
0%
NaOH
0%
Ca (OH)
0%
KOH.
Explanation
KOH.
Which of the following alkali metals has the least melting point?
0%
Na
0%
K
0%
Rb
0%
Cs.
Explanation
Cs.
The hydration energy of Mg
0%
A1
0%
Na
0%
Be
0%
Mg
Explanation
Na
Milk of lime reacts with chlorine to form ________, a constituent of bleaching powder.
0%
Ca(OCI)
0%
Ca(CIO)
0%
Ca(CIO)
0%
Ca(CIO)
Explanation
Ca(OCI)
What happens when Calcium carbonate is heated to 1200 K?
0%
Carbon Monoxide
0%
Calcium hydroxide
0%
Calcium Oxide
0%
Both (2) and (3) are correct
Explanation
Both (2) and (3) are correct
The salt that is added to table salt to make it flow freely in rainy season is
0%
KCl
0%
KI
0%
Ca(PO)
0%
NaPO
Explanation
Ca(PO)
Which of the following metals is not manufactured by electrolysis?
0%
Na
0%
Mg
0%
Al
0%
Fe
Explanation
Fe
0 h : 0 m : 1 s
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