Question

Fill in the blanks with correct options given in brackets.
(i) The formulae of thiosulphate ion is ………. [ SiO₃²⁻ / S₂O₃²⁻ ]
(ii) Atomic mass is defined as ………. the mass of carbon atom. [(1/11)th / (1/12)th]
(iii) Formation of glucose in the presence of light-using water & carbon dioxide is an example of ………. reaction [Thermal decomposition/Synthesis]
(iv) Excess hydrochloric acid secreted by stomach glands results in pain and can be received by giving milk of magnesia. The above process is an example of ………. reaction [Hydrolysis/neutralization]
(v) ………. when added to HCl gives carbon dioxide [calcium carbonate/calcium nitrate]

Answer 1

Answer:

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Answer 2

(i) S₂O₃²⁻ .

(ii) (1/12)th

(iii) Synthesis  

(iv) neutralization  

(v) Calcium carbonate.

Explanation:

Fill in the blanks:

(i) The formulae of thiosulphate ion is S₂O₃²⁻ .

(ii) Atomic mass is defined as (1/12)th the mass of carbon atom.

(iii) Formation of glucose in the presence of light-using water & carbon dioxide is an example of Synthesis reaction.

(iv) Excess hydrochloric acid secreted by stomach glands results in pain and can be relieved by giving milk of magnesia. The above process is an example of neutralization reaction.

(v) Calcium carbonate when added to HCl gives carbon dioxide.