English

One of the Following is Not a Neutral Oxide. this Is: (A) Co (B) H2o (C) N2o (D) Na2o

Advertisements
Advertisements

Question

One of the following is not a neutral oxide. This is:
(a) CO
(b) H2O
(c) N2O
(d) Na2O

Advertisements

Solution

(d) Na2O
Because Na2O is a metal oxide that is basic in nature.

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Metals and Non-metals - Exercise 1 [Page 135]

APPEARS IN

Lakhmir Singh Chemistry [English] Class 10
Chapter 3 Metals and Non-metals
Exercise 1 | Q 68 | Page 135

RELATED QUESTIONS

Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows.

Metal Iron (II) sulphate Cooper (II) sulphate Zinc sulphate Silver nitrate
A No reaction Displacement    
B Displacement   No reaction  
C No reaction No reaction No reaction Displacement
D No reaction No reaction No reaction No reaction

Use the Table above to answer the following questions about metals A, B, C and D.

  1. Which is the most reactive metal?
  2. What would you observe if B is added to a solution of copper (II) sulphate?
  3. Arrange the metals A, B, C and D in the order of decreasing reactivity.

What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.


Write the electron-dot structures for sodium, oxygen and magnesium.


Differentiate between metal and non-metal on the basis of their chemical properties.


From amongst the metals sodium, calcium aluminium, copper and magnesium, name the metal:
(i) which reacts with water only on boiling, and
(ii) another which does not react even with steam.


What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes?


Write equation for the reaction of sodium with oxygen.


Complete and balance the following equation:

Na2O  +  H2O →


With the help of examples, describe how metal oxides differ from non-metal oxides.


What type of oxides are formed when metals combine with oxygen? Explain with the help of an example.


How do non-metals react with hydrogen? Explain with an example.


The elements whose oxides can turn litmus solution blue are:
(a) carbon and sulphur
(b) sodium and carbon
(c) potassium and magnesium
(d) magnesium and sulphur


A metal less reactive and another metal more reactive than hydrogen are:
(a) aluminium and lead
(b) iron and magnesium
(c) copper and tin
(d) copper and mercury


Name a metal which does not react with cold as well as hot water but reacts with steam.


Write the name and formula of a molecule made up of three atoms of oxygen.


Write the chemical equation for the following reaction:
Manganese dioxide is heated with aluminum powder.


A cable manufacturing unit tested few elements on the basisof their physical properties.

Properties W X Y Z
Malleable Yes No No Yes
Ductile Yes No No Yes
Electrical conductivity Yes Yes Yes No
Melting Point High Low Low High

Which of the above elements were dicarded for usage by the company?


Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?


An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.


Tungsten wire is used in electric bulbs.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×