Predict the formula of the stable binary | Class 11 Chemistry Chapter Classification of Elements and Periodicity in Properties, Classification of Elements and Periodicity in Properties NCERT Solutions

Question:

Predict the formula of the stable binary compounds that would be formed by the combination of the following pairs of elements. (a) Lithium and oxygen
(b) Magnesium and nitrogen
(c) Aluminium and iodine
(d) Silicon and oxygen
(e) Phosphorus and fluorine
(f) Element 71 and fluorine

Answer:

CHEMICAL FORMULA- a brief representation of the molecule of a substance (element or compound) in terms of the symbols of the various elements present in it is called its chemical formula.

(a) LiO₂ (Lithium dioxide)

(b) Mg₃N₂(Magnesium nitrite)

(c) AlI₃(Aluminium triiodide)

(d) SiO₂(Silicon dioxide)

(e) PF₃ or PF₅(Phosphorous trifluoride or pentafluoride)

(f) The element with the atomic number 71 is Lutetium (Lu). It has valency 3. Hence, the formula of the compound is LuF_3.(Lutetium trifluoride).

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Comments

Eriyo Peter
2019-12-19 07:10:35

Awesome

Vraj
2019-11-06 13:52:22

BOTH ARE POSSIBLE SI2O IS SILICON OXIDE SIO2 IS SILICON SUPEROXIDE

Pratik Chavan
2019-08-30 17:32:49

Li20 Is correct answer

Anjali
2019-08-08 22:43:13

It should be Li2O

Anjalu
2019-08-08 22:42:30

Yes....it would be Li2O

sachin jaat
2019-03-14 07:21:56

nice

Rahul
2019-03-05 04:16:44

Nice one

Raj
2018-09-21 15:48:39

Ya it should be Li2O.....

Ragini yadav
2018-08-27 15:55:20

YA IT IS VERY USEFUL FOR ME BECAUSE TOMORROW IS MY TEXT

Ayush Rai
2018-07-05 18:01:55

It is Li2O

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Welcome to the NCERT Solutions for Class 11 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 32: Predict the formula of the stable binary compounds that would be formed by the combination of the fo....

Predict the formula of the stable binary | Class 11 Chemistry Chapter Classification of Elements and Periodicity in Properties, Classification of Elements and Periodicity in Properties NCERT Solutions

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