Q7 of 48 Page 2

What is the colour of FeSO4.7H2O crystals? How does this colour change upon heating? Give balanced chemical equation for the changes. (CBSE 2011)

The colour of FeSO4.7H2O crystals is light green. Upon heating the crystals of FeSO4.7H2O losses water of crystallization and becomes white in colour,

Balanced chemical equation for the change is: -


2FeSO4 Fe2O3 + SO2 + SO3

More from this chapter

All 48 →
6

Which one of these has a higher concentration of H+ ions? 1 M HCl or 1 M CH3COOH.(CBSE 2007)

 7

How is the concen 8

A student dropped few pieces of marble in dilute HCl contained in a test tube. The evolved gas was passed through lime water.
(a) What change would be observed in lime water?
(b) Write balanced chemical equation for the above change. (CBSE 2011)

9

Name the acid present in the following:(a) Tomato(b) Vinegar(c) Tamarind. (CBSE 2006)