Choose the correct answer from the options given – If the molecular formula of an organic compound is C₁₀H₁₈ it is –

(i) Alkene
(ii) Alkane
(iii) Alkyne
(iv) Not a hydrocarbon

Write the balanced chemical equation for – Preparation of methane from iodomethane

Fill in the blanks from the choices given in brackets – The compound formed when ethene reacts with hydrogen is …………… [CH₄, C₂H₆, C₃H₈]