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Alkali metals are strong reducing agents...

Alkali metals are strong reducing agents.

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Alkali metals are good reducing agents because

Give reasons for the following: a. Alkli metals do not occur free in nature. b. Alkali metal salts impart characteristic colour to the flame. c. Caesium is used in photoelectric cell. d. Alkali metals are good reducing agents in aqueous medium.

Alkali and alkaline earth metals have low ionisation enthalpies and hence exhibit characteristic flame colouration. They have high negative electrode potentials and hence are strong reducing agents. They dissolve in liquid ammonia to give a solution which conducts electricity and act as strong reducing agent. being stronger reducing agent than hydrogen, they are usually prepared by the electrolysis of their fused chlorides. Their oxides are basic and the basic strength increases down the group. The solubility of carbonates and sulphates of alkali and alkaline earth metals show opposite trends. only the carbonates of Li and alkaline earth metals decompose on heating. The bicarbonates of both alkali and alkaline earth metals on heating give carbonates. The compound insoluble in acetic acid is

The oxides and hydroxides of alkali metals are strong bases.

Alkali and alkaline earth metals have low ionisation enthalpies and hence exhibit characteristic flame colouration. They have high negative electrode potentials and hence are strong reducing agents. They dissolve in liquid ammonia to give a solution which conducts electricity and act as strong reducing agent. being stronger reducing agent than hydrogen, they are usually prepared by the electrolysis of their fused chlorides. Their oxides are basic and the basic strength increases down the group. The solubility of carbonates and sulphates of alkali and alkaline earth metals show opposite trends. only the carbonates of Li and alkaline earth metals decompose on heating. The bicarbonates of both alkali and alkaline earth metals on heating give carbonates. Property of alkaline earth metals that increases with their atomic number is

Among the following metals, the strongest reducing agent is

Alkali and alkaline earth metals have low ionisation enthalpies and hence exhibit characteristic flame colouration. They have high negative electrode potentials and hence are strong reducing agents. They dissolve in liquid ammonia to give a solution which conducts electricity and act as strong reducing agent. being stronger reducing agent than hydrogen, they are usually prepared by the electrolysis of their fused chlorides. Their oxides are basic and the basic strength increases down the group. The solubility of carbonates and sulphates of alkali and alkaline earth metals show opposite trends. only the carbonates of Li and alkaline earth metals decompose on heating. The bicarbonates of both alkali and alkaline earth metals on heating give carbonates. Which of the following process is used in the extractive metallurgy of sodium?

Alkali and alkaline earth metals have low ionisation enthalpies and hence exhibit characteristic flame colouration. They have high negative electrode potentials and hence are strong reducing agents. They dissolve in liquid ammonia to give a solution which conducts electricity and act as strong reducing agent. being stronger reducing agent than hydrogen, they are usually prepared by the electrolysis of their fused chlorides. Their oxides are basic and the basic strength increases down the group. The solubility of carbonates and sulphates of alkali and alkaline earth metals show opposite trends. only the carbonates of Li and alkaline earth metals decompose on heating. The bicarbonates of both alkali and alkaline earth metals on heating give carbonates. The correct decreasing order of basic character of the oxides is

Alkali and alkaline earth metals have low ionisation enthalpies and hence exhibit characteristic flame colouration. They have high negative electrode potentials and hence are strong reducing agents. They dissolve in liquid ammonia to give a solution which conducts electricity and act as strong reducing agent. being stronger reducing agent than hydrogen, they are usually prepared by the electrolysis of their fused chlorides. Their oxides are basic and the basic strength increases down the group. The solubility of carbonates and sulphates of alkali and alkaline earth metals show opposite trends. only the carbonates of Li and alkaline earth metals decompose on heating. The bicarbonates of both alkali and alkaline earth metals on heating give carbonates. Identify the correct order of thermal stabilities.

PEARSON IIT JEE FOUNDATION-PERIODIC TABLE-LEVEL 1
  1. The inert gas present in the second long period is

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  2. Among the isoelectronic ions Na^(+),Mg^(2+) and Al^(3+),Na^(+) ion hav...

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  3. Alkali metals are strong reducing agents.

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  4. Electronegativity is the property of an atom in a bonded molecule.

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  5. In the periodic table, vertical columns of elements are called and ...

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  6. Assertion (A): First ionisation energy of beryllium is greater than ...

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  7. Which of the following properties is a periodic property?

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  8. Which one of the following clcctronic configurations corresponds to ...

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  9. The general electronic configuration of representative elements is

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  10. Predict the formula of a compound formed between a metal 'M' that ha...

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  11. In a period, from the left to right the electron affinity , increases...

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  12. 5f series elements are known as

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  13. The first ionisation energies of Li, Be, B and C are in the order:

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  14. Predict the powerful oxidizing agent in the 3nd period:

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  15. an element with atomic numver '32' belongs to

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  16. The element having the electronic configuration [Kr] 4d6(10) 4f^(14) 5...

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  17. The number of valence electrons that can be present in the second elem...

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  18. Transition metals exhibit variable oxidation states. It is because of

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  19. Arrange F,Cl,O,N in the decreasing order of electronegativy

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  20. In the sixth period, the orbitals being filled are

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