Home
Class 12
CHEMISTRY
(a) Why alkaline earth metals are harder...

(a) Why alkaline earth metals are harder, have higer melting ponts and higher densities than the alkali metals?
(b). Why the atoms of alkaline earth metals are smaller than the corresponding alkali metals?
(c ). Why alkaline earth metals have high electrical and thermal conductivities?
(d). What is black ash?
(e). Why the variation in physical properties of alkaline earth elements is not as regular as in the case of alkali metals?

Promotional Banner

Topper's Solved these Questions

  • 13-14 HYDROGEN & S-BLOCK ELEMENT

    VMC MODULES ENGLISH|Exercise Level 1|74 Videos

  • 13-14 HYDROGEN & S-BLOCK ELEMENT

    VMC MODULES ENGLISH|Exercise Level 2|48 Videos

  • ALCOHOLS, PHENOLS & ETHERS

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE - L|10 Videos

Similar Questions

Explore conceptually related problems

Alkaline earth metals show:-

The atomic radii of alkaline earth metals are smaller than those of the corresponding alkali metals. Explain, why?

The densities of alkaline earth metals are much smaller than those of alkali metals.

Alkaline earth metals have lower melting point than correspondig alkali metals.

Why do alkaline earth metals have higher melting points than group 1 elements ?

Why alkaline earth metal oxides are quite stable?

Why alkaline earth metal oxides are quite stable?

Why are the second ionisation energies of alkaline earth metals much smaller than those of alkali metals ?

How many alkaline earth metals are known?

Assertion (A): Alkaline earth metals are harder than alkali meatals. Reason (R ): Atomic radii of alkaline earth metas are smaller thant the corresponding alkali metals in the same period.

VMC MODULES ENGLISH-13-14 HYDROGEN & S-BLOCK ELEMENT-JEE Advanced Archive
  1. (a) Why alkaline earth metals are harder, have higer melting ponts and...

    Text Solution

    |

  2. Water is a liquid, while H2 S is a gas at ordinary temperature. Explai...

    Text Solution

    |

  3. A solution of sodium metal in liquid ammonia is strongly reducing due ...

    Text Solution

    |

  4. Anhydrous MgCl(2) is obatined by heating hydrate salt with .

    Text Solution

    |

  5. Iodine reacts with hot NaOH solution. The products are NaI and …………………...

    Text Solution

    |

  6. Calcium is obtained by the

    Text Solution

    |

  7. Give reasons for the following: 'Sodium carbonate is prepared by Sol...

    Text Solution

    |

  8. Heavy water is

    Text Solution

    |

  9. MgCl(2).6H(2)O on heating gives anhydrous MgCl(2).

    Text Solution

    |

  10. The adsorption of hydrogen by palladium is commonly known as .

    Text Solution

    |

  11. The molecular formula of Glauber's salt is

    Text Solution

    |

  12. Nitrogen dioxide cannot be obtained by heating

    Text Solution

    |

  13. When sodium is dissolved in liquid ammonia, a solution of deep blue co...

    Text Solution

    |

  14. The oxide that gives H(2)O(2) on treatment with a dilute sulfuric acid...

    Text Solution

    |

  15. Give reasons in one or two sentences for the following: H(2)O(2) is a ...

    Text Solution

    |

  16. Hydrogen gas is liberated the action of aluminium with concentrated so...

    Text Solution

    |

  17. Sodium when burnt in excess of oxygen gives sodium oxide. True or Fals...

    Text Solution

    |

  18. The metallic lusture exhibited by sodium is due to

    Text Solution

    |

  19. A solution of sodium sulphate in water is electrolysed using inert ele...

    Text Solution

    |

  20. Sodium sulphate is soluble in water,whereas barium sulphate is sparing...

    Text Solution

    |

  21. When zeolite which is hydrated sodium aluminium silicate is treated wi...

    Text Solution

    |