English

Which of the Following Are Compounds ? - Science

Advertisements
Advertisements

Question

Which of  the following are compounds ?

  1. CO
  2. No
  3. NO
  4. Co

Options

  • (i) and (ii)

  • (ii) and (iii)

  • (i) and (iii)

  • (i) and (iii)

  • (ii) and (iv)

MCQ

Solution

(i) and (iii)

CO and NO are compounds. While CO is made up of carbon and oxygen, NO is made up of nitrogen and oxygen.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Is Matter Around Us Pure - Very Short Answers [Page 58]

APPEARS IN

Lakhmir Singh Chemistry [English] Class 9
Chapter 2 Is Matter Around Us Pure
Very Short Answers | Q 57 | Page 58

RELATED QUESTIONS

Intermolecular space is maximum in .......... less in ............ and the least in .........


Liquids have definite shape and definite volume.


Name the terms for the change of a solid into liquid.


Describe in your own words, what happens to the particles when salt dissolves in water.


Bromine and air take about 15 minutes to diffuse completely but bromine diffuses into a vacuum very rapidly. Why is this so?


Which type of elements, metals or non-metals, show the property of brittleness ?


Define a compound. Give two points of evidence to show that sodium chloride is a compound.


Name a metal which has a low melting point.


Which of the following are not compounds ?

Chlorine gas, Potassium chloride, Iron powder, Iron sulphide, Aluminium foil, Iodine vapour, Graphite, Carbon monoxide, Sulphur powder, Diamond


Out of a colloid, solution and a suspension :

which one has the smallest particles ?


State whether colloidal solutions are homogeneous or heterogeneous.


Which of the following will show Tyndall effect ? Why ?

  1. Salt solution
  2. Starch solution
  3. Milk
  4. Copper sulphate solution

One of the following liquids will leave behind a residue on heating. This one is :


Fill in the following blanks with suitable words :

The separation of liquids by fractional distillation is based on the difference in their .....................


How will you separate a mixture of iron filings, chalk powder and common salt ?


Explain how, impure copper sulphate can be purified by crystallisation.


The best way to recover sugar from an aqueous sugar solution is :


Explain the meaning of the term ‘matter’.


The non S I and S I units of some physical  quantities are given in column A and column B respectively. Match the units belonging to the same physical quantity: 

(A) (B)
(a) degree celsius (i) kilogram
(b) centimetre (ii) pascal
(c) gram per centimetre cube (iii) metre
(d)  bar (iv) kelvin
(e) milligram (v)  kilogram per metre cube

Intermolecular space is maximum in ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×