Solve this multiple-choice question and choose the correct option.

Polymers (monomer identification): What is the monomer used to make polythene (polyethylene)? Give the correct simple alkene monomer. Choose the correct option.

Difficulty: Easy

Ethene (CH₂=CH₂)
Propene (CH₃–CH=CH₂)
Vinyl chloride (CH₂=CHCl)
Styrene (C₆H₅–CH=CH₂)

Correct Answer: Ethene (CH₂=CH₂)

Explanation:

ConceptPolythene (polyethylene) is obtained by addition polymerization of ethene monomers: n CH₂=CH₂ → –(CH₂–CH₂)–_n.

Final AnswerEthene (CH₂=CH₂)

← Previous Question Next Question→

More Questions from Chemistry

Mineral processing: The ore-concentration method that exploits density differences between ore and gangue is called what? Think of gravity-based separation methods. Choose the correct option.
Post-harvest biology: Which gas is used commercially to induce/artificially ripen green fruits? Select the natural plant hormone gas used for ripening. Choose the correct option.
Periodic trends (electropositivity): Which of the following is the most electropositive element? Recall: metallic character increases down a group and to the left. Choose the correct option.
Materials (glass types): The inexpensive, common glass used in windows and bottles is called soda glass. Why is it called “soda” glass? Identify the key sodium-containing ingredient used in its manufacture. Choose the correct option.
Solubility (noble gases): The inert (noble) gases are ____ in water. Choose the correct qualitative description.
Concentration units: The number of moles of solute present in 1 kg of solvent is called what? State the correct concentration term and unit basis. Choose the correct option.
Mineral processing (froth flotation): Which oil is commonly used as a frothing agent/collector additive in the froth flotation process? Choose the correct option.
Human nutrition (calorific values): The approximate heat energy released when the body metabolizes 1 gram of fat is what? Report the standard physiological energy value. Choose the correct option.
General science (chemistry): Identify the most abundant noble (rare) gas present in Earth’s atmosphere. Among the noble gases (He, Ne, Ar, Kr, Xe), which gas occurs in the highest proportion in dry air at sea level? Choose the correct option.
Stoichiometry: Calculate the mass of P₄O₁₀ formed from given reactants. Reaction: P₄ + 5O₂ → P₄O₁₀ Given 1.33 g of P₄ and 5.07 g of O₂ react completely under standard conditions. Find the mass of P₄O₁₀ produced (assume complete reaction and pure reagents). Choose the correct value.

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion