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NCERT Solution for Class Tenth Science Chapter 2 Acids, Bases and Salts Exercises Questions Page No-19 Questions No-12 (a) Why does he shift the pH of the fresh milk from 6 to slightly alkaline? (b) Why does this milk take a ...

Charul gupta

Asked: October 18, 2020In: Class 10

Fresh milk has a pH of 6. How do you think the pH will change as it turns into curd? Explain your answer.

NCERT Solution for Class Tenth Science Chapter 2 Acids, Bases and Salts Exercises Questions Page No-19 Questions No-11

Charul gupta

Asked: October 18, 2020In: Class 10

Equal lengths of magnesium ribbons are taken in test tubes A and B. Hydrochloric acid (HCl) is added to test tube A, while acetic acid (CH3COOH) is added to test tube B. Amount and concentration taken for both the acids are same. In which test tube will the fizzing occur more vigorously and why?

NCERT Solution for Class Tenth Science Chapter 2 Acids, Bases and Salts Exercises Questions Page No-19 Questions No-10

Charul gupta

Asked: October 18, 2020In: Class 10

Five solutions A,B,C,D and E when tested with universal indicator showed pH as 4,1,11,7 and 9, respectively. Which solution is

NCERT Solution for Class Tenth Science Chapter 2 Acids, Bases and Salts Exercises Questions Page No-19 Questions No-9 (a) neutral? (b) strongly alkaline? (c) strongly acidic? (d) weakly acidic? (e) weakly alkaline? Arrange the pH in increasing order of hydrogen-ion concentration.

Charul gupta

Asked: October 18, 2020In: Class 10

Why do acids not show acidic behaviour in the absence of water?

NCERT Solution for Class Tenth Science Chapter 2 Acids, Bases and Salts Exercises Questions Page No-19 Questions No-8

Charul gupta

Asked: October 18, 2020In: Class 10

Why does distilled water not conduct electricity, whereas rain water does?

NCERT Solution for Class Tenth Science Chapter 2 Acids, Bases and Salts Exercises Questions Page No-18 Questions No-7

Charul gupta

Asked: October 18, 2020In: Class 10

Compounds such as alcohols and glucose also contain hydrogen but are not categorised as acids. Describe an Activity to prove it.

NCERT Solution for Class Tenth Science Chapter 2 Acids, Bases and Salts Exercises Questions Page No-18 Questions No-6

Give two important uses of washing soda and baking soda

What is a neutralisation reaction? Give two examples.

Plaster of Paris should be stored in a moisture-proof container. Explain why?

A milkman adds a very small amount of baking soda to fresh milk.

Fresh milk has a pH of 6. How do you think the pH will change as it turns into curd? Explain your answer.

Equal lengths of magnesium ribbons are taken in test tubes A and B. Hydrochloric acid (HCl) is added to test tube A, while acetic acid (CH3COOH) is added to test tube B. Amount and concentration taken for both the acids are same. In which test tube will the fizzing occur more vigorously and why?

Five solutions A,B,C,D and E when tested with universal indicator showed pH as 4,1,11,7 and 9, respectively. Which solution is

Why do acids not show acidic behaviour in the absence of water?

Why does distilled water not conduct electricity, whereas rain water does?

Compounds such as alcohols and glucose also contain hydrogen but are not categorised as acids. Describe an Activity to prove it.

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