English
Maharashtra State BoardSSC (English Medium) 10th Standard

Choose the Correct Alternative and Rewrite the Following: Iron is _____________________

Advertisements
Advertisements

Question

Choose the correct alternative and rewrite the following:

Iron is _____________________.

Options

  • More reactive than Zn.

  • more reactive than Al.

  • less reactive than Cu.

  • less reactive than Al.

MCQ
Advertisements

Solution

less reactive than Al

shaalaa.com
  Is there an error in this question or solution?
2015-2016 (July)

APPEARS IN

RELATED QUESTIONS

What is an alloy?


Explain how painting of an iron gate prevents it from rusting.


Name any three objects (or structures) which are gradually damaged by the corrosion of iron and steel.


Name the metal which is used for galvanising iron.


Tiffin boxes are electroplated with ______ but car bumpers are electroplated with ______ to protect them from rusting.


______ and ______ are necessary for the rusting of iron.


A common metal which is highly resistant to corrosion is ______.


In stainless steel alloy, iron metal is mixed with ______.


No chemical reaction takes place when granules of a rusty-brown solid A are mixed with the powder of another solid B. However, when the mixture is heated, a reaction takes place between its components. One of the products C is a metal and settles down in the molten state while the other product D floats over it. It was observed that the reaction is highly exothermic.

  1. What could the solids A and B be?
  2. What are the products C and D most likely to be?
  3. Write the chemical equation for the reaction between A and B leading to the formation of C and D. Mention the physical states of all the reactants and products in this equation and indicate the heat change which takes place.
  4. What is the special name of such a reaction? State one use of such a reaction.
  5. Name any two types of chemical reactions under which the above reaction can be classified.

Name the metal which is a constituent of blood pigment?


Answer the following question.

List two properties of alloys.


Give a reason why rust turns moist red litmus blue.


When one of the metals in an alloy is mercury the alloy is called _______.


Find the odd one out and give its explanation.


Explain concept with example/explain with the help of a balanced equation.

Corrosion


Complete flow chart given below.


What is rust?


Copper objects lose their shine and form green coating of ____________.


The diagram shows the reaction between metal and dil. acid.

What is the reason for different behaviour of Mg in test tube B?


State whether the following statement is true or false:

Ships suffer a lot of damage though they are painted.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×