Question
Easy
(A) Sunita takes 0.5 g of Sodium Carbonate in a test-tube and adds 5 ml of Dilute Hydrochloric acid. (B) She passes the gas produced in the above reaction through Lime water. Which of the following represents the chemical reactions taking place in (A) and (B) ?
1
(A) - NaHCO$_3$ + HCl → NaCl + H$_2$O + CO$_2$
(B) - CaCO$_3$ + H$_2$O + CO$_2$ → Ca(HCO$_3$)$_2$
2
(A) - Na$_2$CO$_3$ + 2HCl → 2NaCl + H2O + CO$_2$
(B) - CaCO$_3$ + H$_2$O + CO$_2$ → Ca(HCO$_3$)$_2$
3
(A) - Na$_2$CO$_3$ + 2HCl → 2NaCl + H$_2$O + CO$_2$
(B) - Ca(OH)$_2$ + CO$_2$ → CaCO$_3$ + H$_2$O
4
(A) - NaHCO$_3$ + HCl → NaCl + H$_2$O + CO$_2$
(B) - Ca(OH)$_2$ + CO$_2$ → CaCO$_3$ + H$_2$O
Question Details
Time to Solve: 12
Exam: CTET
Level/Paper: CTET_P2
Chapter: Acids, Bases, and Salts
Topic: Introduction
Correct Answer
Option C
Explanation
Option 3 is the correct answer for the chemical reactions taking place in scenarios (A) and (B). Let's break down the reactions and explain why this option is correct and why the others are not. ### Explanation for Option 3: (A) Reaction: Na$_2$CO$_3$ + 2HCl → 2NaCl + H$_2$O + CO$_2$ 1. Reactants and Products: - Sodium carbonate (Na$_2$CO$_3$) reacts with dilute hydrochloric acid (HCl). - The products formed are…Read More
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