Free MCQs & Online Quiz Practice for Exams

Q: Molar extinction coefficient ε in Beer-Lambert law is characteristic of: (ETEA 2016)

A) solute

B) solvent

C) concentration

D) all of the above

Q: Nuclei invisible in NMR spectroscopy is: (ETEA 2018)

A) N-14

B) P-31

C) Cl-35

D) C-13

Q: Transition associated with propanol by absorbing UV/Visible radiations: (ETEA 2018)

A) n→σ*

B) n→π*

C) π→π*

D) σ→σ*

Q: Empirical formula CH2O, molar mass 150 g/mol. Molecular formula is: (ETEA 2018)

A) C6H12O6

B) C3H6O2

C) C5H10O4

D) C6H12O5

Q: Which produces an NMR spectrum with more than one peak: (ETEA 2019)

A) Ethane

B) Methane

C) Butane

D) Cyclobutane

Q: Possible peaks (chemical shift values) for 1-chloro-2-propanol: (ETEA 2019)

A) 2

B) 3

C) 4

D) 7

Q: Number of peaks given by ethane thiol in NMR spectrum: (ETEA 2019)

A) 2

B) 3

C) 4

D) None

Q: Empirical formula for Glucose C6H12O6 is: (ETEA 2020)

A) C6H0E

B) CHO

C) CH2O

D) CH2O2

Q: Which one of the following electronic sub-shells do the lanthanides fill? (2012 ETEA)

A) 4f

B) 5f

C) 4d

D) 5d

Q: Which one is considered as fool's gold? (2012 ETEA)

A) Copper metal

B) Iron pyrites FeS₂

C) Copper glance Cu₂S

D) None

Q: Cobalt metal generally forms colored compounds. The color is due to: (2012 ETEA)

A) d–d electronic transitions in the visible range

B) p–p electronic transitions in the visible range

C) d–v electronic transitions in the visible range

D) d–p electronic transitions in the visible range

Q: Ethylenediaminetetraacetate ion (EDTA) is a polydentate ligand; it bonds to the central metal atom through: (2013 ETEA)

A) Two of its atoms

B) Three of its atoms

C) Four of its atoms

D) Six of its atoms

Q: The coordination number of cobalt in the complex [Co(H₂NCH₂CH₂NH₂)₃] is: (2013 ETEA)

A) 3

B) 4

C) 5

D) 6

Q: Identify the name of coordination compound K₄[Fe(CN)₆]: (2013 ETEA)

A) Potassium hexacyanoferrate

B) Potassium hexacyanerrate

C) Potassium hexacyanate

D) Potassium (I) hexacyanoferrate (IV)

Q: Which of the following titrants would most likely be used as its own indicator in acid medium? (2013 ETEA)

A) K₂Cr₂O₇

B) Iodine

C) KMnO₄

D) H₂O₂

Q: The element which has the smallest atomic radius among Fe, Co, Ni, Cu is: (2013 ETEA)

A) Fe

B) Co

C) Ni

D) Cu

Q: Choose the correct geometry of the coordination compound Ni(CN)₄²⁻: (2013 ETEA)

A) Square planar

B) Tetrahedral

C) Trigonal bipyramidal

D) Octahedral

Q: Select the ligand which is bidentate and can form chelates: (2015 ETEA)

A) CH₃NH₂

B) PH₃

C) H₂O

D) CH₂–NH₂

Q: Select the correct formula of chloropenta-aqua-chromium(II) chloride: (2015 ETEA)

A) [Cr(H₂O)₅Cl]Cl₃

B) [Cr(H₂O)₅Cl]Cl₂

C) [Cr(H₂O)₅Cl]Cl

D) [Cr(H₂O)₅Cl]Cl (typo)

Q: The components of bronze alloy are: (2015 ETEA)

A) Copper and Zinc

B) Copper and Tin

C) Zinc and Tin

D) Chromium and Tin