English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10

Give any two examples for heterodiatomic molecules. - Science

Advertisements
Advertisements

Question

Give any two examples for heterodiatomic molecules.

Short Note

Solution

Heterodiatomic molecules.
e.g.,

  • HCl
  • NaCl
  • CO
  • HBr
  • HF.
shaalaa.com
  Is there an error in this question or solution?
Chapter 7: Atoms and Molecules - Evaluation [Page 104]

APPEARS IN

Samacheer Kalvi Science [English] Class 10 SSLC TN Board
Chapter 7 Atoms and Molecules
Evaluation | Q VI. 4. | Page 104

RELATED QUESTIONS

Write down the name of a compound represented by the following formula:

Al2(SO4)3


Write down the name of a compound represented by the following formula:

K2SO4


Write down the name of a compound represented by the following formula:

CaCl2


Give the name of the element present in the following compound: 

Hydrogen bromide


Give the name of the element present in the following compound: 

Potassium sulphate


State the term.

The number of atoms present in a molecule of an element _________


Define: Atomic number


 Define: Atomic number


Define: Mass number : 


Define: Atomic weight :


Write the formulae of the following compounds. Also name the elements present in them.

  1. Water
  2. Ammonia
  3. Methane
  4. Sulphur dioxide
  5. Ethanol

One of the forms of a naturally occurring solid compound P is usually used for making the floors of houses. On adding a few drops of dilute hydrochloric acid to P, brisk effervescence are produced. When 50 g of reactant P was heated strongly, than 22 g of a gas Q and 28 g of a solid R were produced as products. Gas Q is the same which produced brisk effervescence on adding dilute HCl to P. Gas Q is said to cause global warming whereas solid R is used for white-washing.

  1. What is (i) solid P (ii) gas Q, and (iii) solid R.
  2. What is the total mass of Q and R obtained from 50 g of P ?
  3. How does the total mass of Q and R formed compare with the mass of P taken ?
  4. What conclusion do you get from the comparison of masses of products and reactant ?
  5. Which law of chemical combination is illustrated by the example given in this problem ?

Work out the formula for magnesium hydrogencarbonate.


Molecular compounds are usually formed by the combination between :


An element X forms the following compounds with hydrogen, carbon and oxygen :

H2X, CX2, XO2, XO3

State the three valencies of element X which are illustrated by these compounds.


Give a reason why –

Helium is considered monoatomic, but hydrogen a diatomic molecule.


Give a reason why –

Ozone is considered triatomic, but phosphorus a tetratomic molecule.


State the atomicity of the following:

Neon


State the atomicity of the following:

Sulphur


Which of the following is a short and scientific way of representing one molecule of an element or compound?


Define: Atomicity.


Derive the relationship between Relative molecular mass and Vapour density.


Which of the following contains maximum number of molecules?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×