Question

FILL IN THE BLANKS :
(I) Medicines used to reduce tension are called _______ .
(ii) One amu has mass equal to __________ Kg.
(iii) The number of atoms present in one molecule of a substance is called its
_____________.
(iv) The normality of 500 ml of 0.2 M sulphuric acid is ________ .
(v) Amount of oxalic acid (COOH)2 .2H2O , in grams required to prepare 200ml of 0.5 M oxalic acid solution is ___________


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Answer 1

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Your Ans >>

(i) selective serotonin reuptake inhibitors (SSRIs)

(ii) 1.67377 x 10 -27 kilogram (kg)

(iii) atomicity

(iv) 0.4 n

(v) wkt the molecular mass of oxalic acid is 108u. to prepare the given solution we want 0.2×0.5=0.1 moloxalic acid which weighs 10.8g.

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Answer 2

Answer:

1. selective serotonin reuptake inhibitors

2. 1/2 KG OF CARBON

3.element

4. O.4 N

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