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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ८

Magnesium hydroxides are used for treating _______ - Science

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प्रश्न

Magnesium hydroxides are used for treating _______

विकल्प

  • acidity

  • head pain

  • teeth decay

  • None of these

MCQ
सत्य या असत्य

उत्तर

Magnesium hydroxides are used for treating acidity.

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 14: Acids and Bases - Exercises [पृष्ठ १६४]

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सामाचीर कलवी Science [English] Class 8 TN Board
अध्याय 14 Acids and Bases
Exercises | Q I. 7. | पृष्ठ १६४

संबंधित प्रश्न

Complete and balance the following chemical equations

Na2 CO3 (s) + HCI (aq) →


What happens when an acid reacts with a metal carbonate? Explain with the help of an example. Write chemical equation of the reaction involved.


A solution reacts with zinc granules to give a gas which burns with a 'pop' sound. The solution contains:
(a) Mg(OH)2
(b) Na2CO3
(c) NaCl
(d) HCl


Define an acid and a base. Give two examples of each.


A first-aid manual suggests that vinegar should be used to treat wasp stings and baking soda for bee stings. What does this information tell you about the chemical nature of:

 bee stings?


State one use of bleaching powder (other than bleaching).

 

Read the following statements: 

I. When a red litmus paper is dipped into reaction mixture of a saponification reaction, it turns blue and the reaction is exothermic.

II. When a blue litmus paper is dipped into reaction mixture of a saponification reaction, its colour does not change and the reaction is exothermic.

III. When a red litmus paper is dipped into reaction mixture of a saponification reaction, its colour does not change and the reaction is endothermic.

IV. When a blue litmus paper is dipped into reaction mixture of a saponification reaction, its colour does not change and the reaction is endothermic.

Which of the above statements are correct:

(A) I, and II

(B) II and III

(C) III and IV

(D) I and IV


Answer the following question:
What is the universal indicator? Does Mg (OH)2 react with sodium hydroxide? If not, why?


During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to ______ 


Vinegar is ______ in taste.


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