Home
Class 11
CHEMISTRY
Name an element which is invariably biva...

Name an element which is invariably bivalent and whose oxide is soluble in excess of `NaOH` and its dipositive ion has a noble gas core.

Text Solution

Verified by Experts

The elements which satisfies the following requirements:
(a). Invariably bivalent.
(b). Oxide is soluble in `NaOH`.
(c ) Dipostive ion has noble gas core is beryllium.
(i) The bivalent ion of beryllium is `Be^(2+)`.
(ii). Since `BeO` is amphoteric. It reacts both with an acid and an alkali, whereas other oxides of group `2` elements are basic and do not react with `NaOH`.
`BeO+2NaOHrarrNa_(2)BeO_(2)+H_(2)O`
(iii) `Be^(2+)` ion has noble gas core
`Be^(2+)`ion `1s^(2)2s^(0)` or `[He]2s^(0)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • S-BLOCK GROUP 2 - ALKALINE EARTH METALS

    CENGAGE CHEMISTRY|Exercise Ex 5.1 Objective|2 Videos

  • S-BLOCK GROUP 2 - ALKALINE EARTH METALS

    CENGAGE CHEMISTRY|Exercise Exercises Archives Subjective|9 Videos

  • S-BLOCK GROUP 1 - ALKALI METALS

    CENGAGE CHEMISTRY|Exercise Archives Subjective|8 Videos

  • SOME BASIC CONCEPTS AND MOLE CONCEPT

    CENGAGE CHEMISTRY|Exercise Archives Subjective|11 Videos

Similar Questions

Explore conceptually related problems

Name the element which is invariably bivalent and whose oxide is soluble in excess of NaOH and its dipositive ion has noble gas core .

Name an element from group 2 which forms an amphoteric oxide and a water soluble sulphate.

Knowledge Check

  • An alkaline metal oxide which is soluble in NaOH has

    A
    `NaCl` structure
    B
    wurzite structure
    C
    `CsCl` structure
    D
    rutile structure

  • An element M forms insoluble hydroxide, which is soluble in both excess of NaOH and excess of NH_(3) solution, element M is:

    A
    `AI`
    B
    `Pb`
    C
    `Zn`
    D
    `Fe`

  • The hydroxide of which metal ion(s) which is/are soluble in excess of NaOH solution

    A
    `A1^(3+)`
    B
    `zn^(2+)`
    C
    `Fe^(3+)`
    D
    `Cu^(2+)`

    • Similar Questions

    Explore conceptually related problems

    The element which has only one oxidation state in its compounds is

    The element which has only one oxidation state in its compounds is

    An element which never has a positive oxidation number in any of its compounds

    When metal ‘M’ is treated with NaOH, a white gelatinous precipitate ‘X’ is obtained, which is soluble in excess of NaOH. Compound ‘X’ when heated strongly gives an oxide which is used in chromatography as an adsorbent. The metal ‘M’ is

    When metal 'M' is treated with NaOH , a white gelatinous precipitate 'X' is obtained which is soluble in excess of NaOH. Compound 'X' when heated strongly gives an oxide which is used in chromatography as an adsorbent. Then metal 'M'

    Home
    Profile