Question

CHOOSE THE CORRECT OPTION IN THE following. 1. The solution of sodium hydroxide.(a) acidic (b) alkaline (c) neutral (d) amphoteric 2. in which type of change a new substance is formed? (a) in physical change (b) in chemical change (c) in both(a) and (b) (d) in neither of these.​

Answer 1

1. alkaline
2. in chemical changes.

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Answer 2

Answer:

1. (b) Alkaline

2. (b) In chemical changes

Explanation:

1. The solution of sodium hydroxide (NaOH; Na+ cations, and OH- anions) is an alkaline solution with a pH of 12. It is most commonly known by the name caustic soda (or lye) and is considered the most widely used industrial alkali. The NaOH solutions industrial applications are; explosive products production, cotton fabrics processing, the treatment of cellulose for paper production, making of soaps and dyes, petroleum products production, and metals cleaning and processing. It is highly corrosive and is either used as a 50% solution or a solid.
2. All new substances are formed by chemical changes. A daily life example of chemical changes is the digestion of food where glucose, triglycerides, and amino acids are formed from carbohydrates, fats, and proteins, respectively through biochemical processes.

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