Chemistry Quiz - Free Quizzes & Questions Online

1.	The general formula of a cycloalkane is (A) CnH2n + 2 (B) CnH2n - 2 (C) CnH2n (D) CnHn	Answer: (C)
2.	The incorrect statement in respect of Chromyl chloride test is (A) formation of Chromyl chloride (B) liberation of Chlorine (C) formation of red vapours (D) formation of lead chromate	Answer: (B)
3.	The IUPAC name for tertiary butyl iodide is (A) 4-Iodobutane (B) 2-Iodobutane (C) 1-Iodo, 3-methyl propane (D) 2-Iodo 2·methyl propane	Answer: (D)
4.	The IUPAC name of [Co(NH3)5 ONO]2+ ion is (A) Penta ammine nitro cobalt (III) ion (B) Penta ammine nitro cobalt (IV) ion (C) Penta ammine nitrito cobalt (IV) ion (D) Penta ammine nitrito cobalt (III) ion	Answer: (D)
5.	The IUPAC name of K2 [Ni (CN)4] is ______. (A) Potassium tetracyanatonickelate (II) (B) Potassium tetracyanonickelate (II) (C) Potassium tetracyanonickel (III) (D) Potassium tetracyanatonickel (II)	Answer: (B)
6.	The Lassaigne's extract is boiled with conc. HNO3 while testing for halogens. By doing so it. (A) Increase the concentration of  ions (B) Decomposes Na2S and NaCN, if formed (C) Helps in the precipitation of AgCl (D) Increases the solubility product of AgCl	Answer: (B)
7.	The letter 'D' in D - glucose signifies ______. (A) dextrorotatory (B) configuration at all chiral carbons (C) configuration at a particular chiral carbon (D) that it is a monosaccharide	Answer: (C)
8.	The magnetic moment of a transition metal ion is  B.M. Therefore the number of unpaired electrons present in it is (A) 1 (B) 2 (C) 3 (D) 4	Answer: (C)
9.	The mass of a metal, with equivalent mass 31.75, which would combine with 8 g of oxygen is (A) 31.75 (B) 3.175 (C) 8 (D) 1	Answer: (A)
10.	The maximum number of hydrogen bonds that a molecule of water can have is (A) 1 (B) 2 (C) 3 (D) 4	Answer: (D)