National Science Olympiad Forum By SOF Olympiad Trainer - Page 135

User Forum

Subject :NSO    Class : Class 1

Post Your Answer

Subject :NSO    Class : Class 1

Post Your Answer

Subject :NSO    Class : Class 9

Post Your Answer

Subject :NSO    Class : Class 2

Post Your Answer

Subject :NSO    Class : Class 2

Post Your Answer

Subject :NSO    Class : Class 1

Post Your Answer

Subject :NSO    Class : Class 7

Observe the given reaction carefully and fill in the blanks by choosing an appropriate option.

Fe(s) + CuSO4(aq) FeSO4(aq) + Cu(s)
Before reaction, iron is (i) in colour and solution is (ii) in colour. After reaction iron gets (iii) deposits and the solution becomes (iv) in colour.

(i) (ii) (iii) (iv)
A Grey Colourless Red Blue
B Red Blue Grey Green
C Grey Blue Brown Green
D Red Colourless Grey Green


C is the answer

Ans 1:

Class : Class 7
cccccccccccccccccccc

Ans 2:

Class : Class 7
aaaaaaaaaaaaaaaaaaaaa

Ans 3:

Class : Class 8
C is the answer

Post Your Answer

Subject :NSO    Class : Class 3

Post Your Answer

Subject :NSO    Class : Class 9

Post Your Answer

Subject :NSO    Class : Class 1

Post Your Answer