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Lithium is softer than...

Lithium is softer than

A

Na

B

K

C

Rb

D

none of these

Text Solution

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The correct Answer is:
D
Li is harder than other alkali metals i.e., Li is the hardest alkali metal on account of the strogest metalic bonding however Li is softer than lead.
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How would you explain the fact that the first ionization enthalpy of Lithium is lesser than that of Beryllium but its second ionization enthalpy is greater than that of Beryllium?

Which of the following is/are correct statements? (A) The melting point of Lithium is more than that of sodium (B) The density of sodium is more than those of both Lithium and potassium (C) The melting point of caesium (CS) is lowest in Alkali group (D) Alkali metals have maximum atomic radius in their period

Heart wood is softer than the sap wood and not durable.

Assertion (A): Sodium metal is softer than potassium metal. Reason (R ): Metallic bond in potassium is weaker than in sodium.

Statement-I : Lithium is a better reducing agent than Cs. Statement-II : Sublimation energy and ionization energy of lithium is less than that of Cs.

Lithium is the hardest alkali metal.

Lithium forms

R SHARMA-THE S BLOCK ELEMENTS-Question Bank (Level- II)
  1. Which of the following compounds contains potassium ?

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  2. The inner shells of electrons are completely filled in

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  3. Lithium is softer than

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  4. Lithium is the srtrongest reducing agent in the aqueous solution becau...

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  5. Alkali metals liberate H(2) gas when they react with

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  6. Which of the following alkali-metal hydroxides is the least soluble in...

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  7. Which of the following compounds is the most stable?

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  8. The alkali metal cation having the least ionic mobility is

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  9. Which of the following is insoluble in organic solvents?

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  10. NaNO(3) when heated to 500^(@)C given

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  11. Which of the following decomposes more readily than the other forming ...

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  12. Which of the following compounds does not contain calcium?

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  13. Which of the following has the highest melting and boiling points?

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  14. Which of the following alkaline earth metals do not impart any color t...

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  15. Which one among the following is the most basic?

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  16. Which of the following compounds is covalent?

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  17. Which of the following chlorides does not respond to the flame test?

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  18. Which of the following is incorrect for both Be and Al?

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  19. Milk of lime reacts with chlorine to form , a constituent of bleaching...

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  20. The most abundant metal present in the human body is

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