Question

LVE THE RIDDLES: (1x5=5 marks)

 I am purple in colour. 

I am grouped under non-metals. 

I forms a brown solution in alcohol .

I am used as an antiseptic on wound.

Who am I? 

I look to be soft.So they call me as a non-metal.

But I can burn you , if you try to hold me in your hands.

My home is under the water.

Who am I?

I have the atomic symbol Hg, but I am not hydrogen.

I am a metal, but not gold.

I am a liquid but I’m not solder.

I am a Roman god but I am not Apollo.

I am a planet but not Mars.

Who am I?

I am  part of all that lives,

When combined with oxygen, I make the fizz.

Wear me on your finger or use me to write.

In one of my forms, my name is graphite.

Who Am I?


 If you dropped this on your foot

You would find it really hurts

Its usually heated up

And is used to flatten shirts.

Who Am I?


II. COMPLETE THE FOLLOWING REACTIONS (1x5=5 marks)


CuSO4 + Zn

 

CuSO4 + Fe

 

ZnSO4  + Cu



FeSO4 + Cu


ZnSO4  + Fe



  ​

Answer 1

Answer:

1. Iodine
2. Potassium
3. Mercury
4. Carbon

||.

CuSO4 + Zn gives ZnSO4 + Cu

CuSO4 + Fe gives FeSO4 + Cu

ZnSO4  + Cu gives ZnSO4  + Cu

FeSO4 + Cu gives FeSO4 + Cu

ZnSO4  + Fe gives ZnSO4  + Fe