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Introduction To Group 1 Elements Free Doubts and Solutions

CBSE - XI Science - Chemistry - The s-Block Elements

NaF has higher lattis enthalpy than NaCl, still NaCl has higher melting point, why ?

Asked by anirbanbag81 13th January 2018, 11:27 AM
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CBSE - XI Science - Chemistry - The s-Block Elements

Write the name and symbol of 2 most rectove metal belonging to group 1 of periodic table. Draw the electronic structure. How either one of the ecah metal reacts with halogens. What is the name of

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CBSE - XI Science - Chemistry - The s-Block Elements

Give the reason that lithium salts are mostly hydrated.

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CBSE - XI Science - Chemistry - The s-Block Elements

Why alkali metals are kept in kerosene oil?

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CBSE - XI Science - Chemistry - The s-Block Elements

Alkali metals dissolve in liquid ammonia to give a blue coloured solution. Why does the solution turn bronze when the concentration is increased? 

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CBSE - XI Science - Chemistry - The s-Block Elements

what is hydration energy, ionization enthalpy,atomization

Asked by mayankcanneverchange 27th January 2015, 7:57 PM
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CBSE - XI Science - Chemistry - The s-Block Elements

Why is LiF almost insoluble in water whereas LiCl soluble not only in water but also in acetone?

Asked by Topperlearning User 12th August 2014, 10:01 AM
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CBSE - XI Science - Chemistry - The s-Block Elements

What happens when: (i) Sodium metal is dropped in water. (ii) Sodium metal is heated in free supply of air. (iii) Sodium reacts with dihydrogen at 673K.

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CBSE - XI Science - Chemistry - The s-Block Elements

Give the name of radioactive alkali metal.

Asked by Topperlearning User 12th August 2014, 9:32 AM
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CBSE - XI Science - Chemistry - The s-Block Elements

When an alkali metal dissolves in liquid ammonia the solution can acquire different colors. Explain the reasons for this type of color change.

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CBSE - XI Science - Chemistry - The s-Block Elements

Explain why is sodium less reactive than potassium?

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CBSE - XI Science - Chemistry - The s-Block Elements

Why are potassium and caesium, rather than lithium used in photoelectric cells?

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CBSE - XI Science - Chemistry - The s-Block Elements

Give the name of most and least powerful reducing agent among alkali metals.

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CBSE - XI Science - Chemistry - The s-Block Elements

Why the group 1 elements are called alkali metals?

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