Science, asked by priyaa34, 11 months ago

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Q : WHAT ARE THE PROBLEM CAUSED BY THE NON-BIODREGATION WASTES THAT WE GENERATE ?

Q:- THE VALENCY OF THE 2ND GROUP OF ELEMENTS IS ________

Q:- A SOLUTION TURNS RED LITMUS BLUE , ITS Ph IS LIKELY TO BE ____

Q:-Pb + CuCl2 -------> PbCl2 + Cu is which reaction

Answers

Answered by vaishnavi8643
1

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Q. The problems caused by non degradation wastes that we generate are :

1) Cloging of drains.

2) Death of cattle by ingestion of plastic to xin remains on plants.

Q. Elements is Helium and Valency is 0 (zero).

Q. Since red litmus become blue when it's comes in contact with the mentioned solution, it's pH value may be 10.

Q. Displacement reaction here Cu has been displaced by pb.

Answered by Anonymous
3

Answer:

here u go......

Explanation:

1Q:-

Ans:- Due to the non biodegradable wastes , our earth gets

polluted , as it cannot decompose it , it just remains as solid

waste.......

when animals eat it they die.

drains also gets clogged

2Q:-

Ans:- the valency of second group elements is two ( not zero

which was answered by the other person )

3Q:-

Ans :- It's pH is likely to be greater than seven (pH>7 is a base

that turns red litmus to blue )

4Q:-

Ans :- Displacement reaction ....

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