Physics, asked by prana7777, 2 months ago

please i want answers right now i dont want any other answers except this questions​

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Answers

Answered by ItzBrainlyQueen01
12

Explanation:

Question 1 :

i) Acid : C and D

Base : B, E, F and G

Neutral : A

ii) Strong acid : C

Weak acid : D

iii) Phenolphthalein is naturally colourless but it turns Pink when treated with alkaline.

So if we treat it substance with ph 7 it will turns pink.

iv) If reaction takes place between substance B(base) and C(acid) (neutralization reaction) salt(acidic) and water will form.

Question 2 : MCQs

1. C) H2SO4

Reason : H2SO4 is a strong acid and ㅤㅤacidic solution turns blue litmus red

2. D) NaOH

Reason : Substance with more than 7 ㅤㅤPh is basic and Sodium hydroxide ㅤㅤ(NaOH) is base

3. B) Base

Example of given reaction:

CO2 + NaOH ---- Na2CO3 + H2O

4. B) CaSO4.2H2O

5. B) Ph of rain< 5.6

Hope my answers are really

helpful to you ☺️

Do you know Science is my favourite subject ❤️❤️

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