Identify the molecular formula of Furan:
Correct answer: A. C4H4O
- A. C4H4O
- B. C5H3O
- C. C4H5O
- D. C4H3O
Explanation
Option A is correct. The molecular formula of furan is C4H4O. Furan is a heterocyclic aromatic compound characterized by a five-membered ring comprised of four carbon atoms and one oxygen atom. The oxygen atom is part of the ring structure, contributing to its aromatic properties. Furan has applications in the production of various chemicals, including plastics and pharmaceuticals, and is recognized for its distinctive odor. Option B is incorrect because C5H3O corresponds to furfural, which is a derivative of furan but not the molecular formula for furan itself. Option C is incorrect as C4H5O is the molecular formula for cyclobutanol, a cyclic alcohol, and does not describe furan. Option D is incorrect because C4H3O is not a valid molecular formula for any stable compound, as it suggests that a carbon atom would have fewer than four bonds, which violates the octet rule.
Last updated
About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
Practise Transition Elements
531 free Transition Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A cobalt-amine has the formula Co(NH3)6Cl3. With AgNO3 solution, one third of the chloride is precipitated. The complex shows cis-trans isomerism. It can have the structure:
A complex compound of cobalt has a molecular formula containing five NH3 molecules, one nitro group and two chlorine atoms for one Co atom. One mole of this compound produces three moles of ions in an aqueous solution. On reacting with excess AgNO3 solution, two moles of AgCl get precipitated. The ionic formula of the compound is?
A compound having coordination number 6 has geometry:
A coordination complex compound of cobalt has a molecular formula containing five ammonia molecules, one nitro group, and two chlorine atoms for one cobalt atom. One mole of this compound produces three-mole ions in an aqueous solution. By the reaction of this solution with excess silver nitrate solution, two molecules of AgCl get precipitated. The ionic formula of this compound would be:
Acidified K₂Cr₂O₇ is also called: