3 years ago

Which of the following statements is NOT true about combustion reactions?

Chemistry

1 answer:

alex41 [277]3 years ago

8 0

Answer:

The answer is option C, that is, combustion reactions have oxygen and a hydrocarbon as reactants.

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Using the Rydberg formula as:

$\frac {1}{\lambda}=R_H\times Z^2\times (\frac {1}{n_{1}^2}-\frac {1}{n_{2}^2})$

where,

λ is wavelength of photon

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For Hydrogen atom, Z= 1

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Also,

1 nm = 10⁻⁹ m

So,

Wavelength = 410.1 × 10⁻⁹ m

Applying in the formula as:

$\frac {1}{410.1\times 10^{-9}}=1.097\times 10^7\times 1^2\times (\frac {1}{n_{1}^2}-\frac {1}{2^2})$

Solving for n₁ , we get

n₁ ≅ 1

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