C or d because ik it’s not consolidated
Answer:
C. Decomposition of potassium permanganate(Heating)
Explanation:
The equation of the reaction is given as;
2KMnO4 -> K2MnO4 + MnO2(s) + O2(g)
Reactant = 2KMnO4
Products = K2MnO4 + MnO2(s) + O2(g)
A. Oxygen turned in to carbon dioxide
Incorrect option - Oxygen is not the reactant
B. Sulphate and lithium boiled
Incorrect option - Sulphate and lithium are not part of this reaction
C. Decomposition of potassium permanganate(Heating)
Correct option - potassium permanganate decomposed to form K2MnO4 + MnO2(s) + O2(g)
D. None of the above
Incorrect option
Answer:
Molecular Formula = C₆H₁₂O₆
Solution:
Molecular formula is calculated by using following formula,
Molecular Formula = n × Empirical Formula ---- (1)
Also, n is given as,
n = Molecular Weight / Empirical Formula Weight
Molecular Weight = 180.2 g.mol⁻¹
Empirical Formula Weight = 12 (C) + 2 (H₂) + 16 (O) = 30 g.mol⁻¹
Son
n = 180.2 g.mol⁻¹ ÷ 30 g.mol⁻¹
n = 6
Putting Empirical Formula and value of "n" in equation 1,
Molecular Formula = 6 × CH₂O
Molecular Formula = C₆H₁₂O₆
The common way the scientific knowledge is discovered passes through several steps:
First you observe the phenomenon around you. Then you develop a certain hypothesis based on your observation. After that you start testing your hypothesis and collecting the resultant data from your tests.
Finally comes the conclusion of whether your hypothesis is accepted or rejected.
If it is accepted, it can further develop into a theory and a publication afterwards.
The answer is: hypothesis
