Advertisements
Advertisements
प्रश्न
Is Photosynthesis an endothermic reaction or an exothermic reaction?
उत्तर
Photosynthesis: Endothermic reaction
Photosynthesis occurs by absorbing light energy from sunlight.
APPEARS IN
संबंधित प्रश्न
State one characteristic of the chemical reaction which takes place when dilute sulphuric acid is added to barium chloride solution.
When metal X is treated with a dilute acid Y, then a gas Z is evolved which burns readily by making a little explosion.
(a) Name any two metals which can behave like metal X.
(b) Name any two acids which can behave like acid Y.
(c) Name the gas Z.
(d) Is the gas Z lighter than or heavier than air?
(e) Is the reaction between metal X and dilute acid Y, exothermic or endothermic?
(f) By taking a specific example of metal X and dilute acid Y, write a balanced chemical equation for the reaction which takes place. Also indicate physical states of all the reactants and products.
Write your observations and name the product when
Iron nails are added to an aqueous solution of copper sulphate.
Write the balanced chemical equation of the following reaction. iron + sulphuric acid → ferrous sulphate + hydrogen.
How is a flame test performed?
Write word equation for the following molecular equation:
\[\ce{CuSO4 + 2NaOH -> Na2SO4 + Cu(OH)2↓}\]
Word equation:
State the colour of the products.
Give word equation for the following chemical reaction and give the names of the product formed.
Zn + 2HC1→ ZnCl2 + H2
\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]
Give a reason why the above equation is balanced.
Balance the following simple equation:
KHCO3 → K2CO3 + H2O + CO2
Balance the following simple equation:
CaO + HCl → CaCl2 + H2O
