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Alkali metals are so named because...

Alkali metals are so named because

A

of their large atoms sizes

B

of their oxides give strong bases in water

C

of their high reactivity in air

D

of their colours imparted in bunsen flame

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The correct Answer is:
B
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Alkali metals are good

Assertion (A): Alkali metals are soft and have low Melting and boiling points. Reason (R): This is because interatomic bonds are weak.

(A): Alkali metals are not soft and have low melting and boiling points (R): This is because interatomic bonds are weak

(A) : Alkali metals are very soft and they can be cut with knife (R) : Alkali metals have weak interatomic forces

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Alkaline earth metal compounds are less soluble in water than the corresponding alkali metal compounds because the alkaline earth metals have

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AAKASH SERIES-REVISION EXERCISE -CHEMICAL EQUILIBRIUM
  1. Alkali metals are so named because

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  2. 50 g CaCO(3) is allowed to dissociated in 22.4 lit vessel at 819^(@)C ...

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  3. One mole of A (g) is heated to 200^@ C in a one litre closed flask, ti...

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  4. An equilibrium mixture for the reaction, 2H(2)S(g) hArr 2H(2) (g) + S(...

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  5. For the reversible reaction N(2 (g)) + 3 H(2 (g)) hArr 2 NH(3 (g)) a...

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  6. The Kc for the reaction I(2 (g)) hArr 2I((g)) is 4 xx 10^(-3) . If the...

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  7. At 298 K, the molar equilibrium concentrations of Ag^(+) , NH(3) and [...

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  8. The value of K(p) for the reaction 2H(2)S(g) hArr 2H(2)(g) +S(2)(g) is...

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  9. In a closed container and at constant temperature 0.3 mole of SO(2) & ...

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  10. For A + B hArr C + D ,Delta H = -Q KJ , K(f) & K(b) respectively are ...

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  11. At certain temperature 28 gm of N(2) and 6 gm of H(2) are taken in a 2...

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  12. x mol N(2) O(4) is taken at P1 atm in a closed vessel & heated . When ...

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  13. 3 moles of NH3 are allowed to dissociate in a 5 litre vessel and the e...

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  14. When 1 mole of N2 and 1 mole of H2 is enclosed in a 5 L vessel and rea...

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  15. One mole of compound AB reacts with one mole of a compound CD accordin...

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  16. 56 gm of nitrogen and 4 gm of hydrogen are taken in a closed vessel

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  17. AB(2) dissociates as : AB(2 (g)) hArr AB((g)) + B((g)) When the intia...

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  18. At a certain temperature and total pressure of 10^(5)Pa, iodine vapour...

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  19. For the reaction SnO(2(s)) + 2H(2(g)) hArr 2H(2) O((g)) + Sn((d)) . Ca...

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  20. 3 mole of reactant A and one mole of reactant B are mixed in a vessel ...

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  21. An amount of solid NH(4) HS is placed in a flask already containing am...

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