Question

^_^ HEY ALL!!

PLEASE TRY THESE 4 QUESTIONS PLEASE ⤵️⤵️

☑️ How is sodium hydroxide prepared from brine solution? Give reaction.(2 marks)

☑️ Why do our natural resources need to be managed? (5 marks)

☑️ How can you help in reducing the problem of waste disposal? Explain (5 marks)

Hoping to get the answers soon✨✨

Answer 1

no 1 answer Chlorine gas is also produced in this process. Solid sodium hydroxide is obtained from thissolution by the evaporation of water. Principle — In castner-kellner method NaOHis prepared by the electrolysis of aqueoussolution of NaCl (Brine). ... Chlorine producedat the anode is removed from the top of the cell.
no 2 answer We need to manage our natural resourcesbecause natural sources are limited.We needto conserve it forward future otherwise it will be finished. For example-Tree is a natural resource. We get Oxygen, food, medicine etc.Now a days, pollution is increasing. ... That's why we have to manage/save our natural resources.M
no 3 answer Donate Clothes. ...

Reduce Food Waste. ...

Eat Healthy. ...

Save Leftovers for Next Day. ...

Buy Things With Less Packaging. ...

Boycott Plastic Water Bottles. ...

Just Don't Buy as Much Stuff….Really. ...

Recycle.






please make me brainlist

Answer 2

$\huge\mathfrak{Answer:-}$

1)

=> The brine solution is the solution of 20% to 30 % of (NaCl in water).

=> For the preparation of NaOH from the brine solution electrolysis method is used. 

=> Electrolysis of brine solution is used for the large scale production of Chlorine gas, NaOH and Hydrogen gas. 

=> The reaction of electrolysis of brine is as follows: 

2NaCl (aq) + 2H2O(l) → H2(g) + Cl2(g) + 2NaOH(aq)

$At\:anode:$ 

2Cl− → Cl2 + 2e−

$At\:cathode:$

2H+  +  2e− → H2 

2)

Our natural resources need to be managed because:

=> A majority of natural resources is limited.

=> Human population is increasing at a tremendous rate.

=> Utilization of natural resources is increasing at an exponential rate.

=> Need to conserve resources for future generations.

=> Equal distribution of resources for equal benefit.

3)

We can help in reducing the problem of waste disposal by adopting the following methods:

=> Dispose the biodegradable and non-biodegradable in different dustbins.

=> Reducing the volume of wastes by burning them incinerator.

=> By minimizing the use of non-biodegradable material.

=> Production of compost, biogas from biodegradable wastes.

=> Recycling the non-biodegradable wastes like plastic.

$\huge{Be\:Brainly}$ ❤️