Science
C6H12O6 (aq) + 6O2 (aq) ⟶ 6CO2 (aq) + 6H2O (l)
The above reaction is a/an
- displacement reaction
- endothermic reaction
- exothermic reaction
- neutralisation reaction
Chemical Reaction
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Answer
exothermic reaction
Reason — The name of the above reaction is respiration and it is an exothermic reaction. The glucose from food combines with oxygen in the cells of our body and provides energy as heat.
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Related Questions
Sodium reacts with water to form sodium hydroxide and hydrogen gas. The balanced equation which represents the above reaction is
- Na(s) + 2H2O(l) ⟶ 2NaOH(aq) + 2H2(g)
- 2Na(s) + 2H2O(l) ⟶ 2NaOH(aq) + H2(g)
- 2Na(s) + 2H2O(l) ⟶ NaOH(aq) + 2H2(g)
- 2Na(s) + H2O(l) ⟶ 2NaOH(aq) + 2H2(g)
Which of the options in the given table are correct?
Option Natural Source Acid Present (i) Orange Oxalic acid (ii) Sour milk Lactic acid (iii) Ant sting Methanoic acid (iv) Tamarind Acetic acid - (i) and (ii)
- (i) and (iv)
- (ii) and (iii)
- (iii) and (iv)
Which of the following statements about the reaction given below are correct?
MnO2 + 4HCl ⟶ MnCl2 + 2H2O + Cl2
(i) HCl is oxidized to Cl2
(ii) MnO2 is reduced to MnCl2
(iii) MnCl2 acts as an oxidizing agent
(iv) HCl acts as on oxidizing agent
- (ii), (iii) and (iv)
- (i), (ii) and (iii)
- (i) and (ii) only
- (iii) and (iv) only
Select from the following the statement which is true for bases.
- Bases are bitter and turn blue litmus red.
- Bases have a pH less than 7.
- Bases are sour and change red litmus to blue.
- Bases turn pink when a drop of phenolphthalein is added to them.