Recent questions in Chemistry

Which of the following amine is less basic than aniline?

asked Feb 28, 2014 by sreemathi.v

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Deep blue colour formed by addition of copper (II) sulphate solution to ethyl amine is due to formation of

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A gas in an open container is heated from $27^{\large\circ}C$ to $127^{\large\circ}C$. The fraction of the original amount of gas remaining in the container will be

asked Feb 28, 2014 by sharmaaparna1

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The number of isomer aromatic compounds possible for the formula $C_7H_9N$ is

asked Feb 28, 2014 by sreemathi.v

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Boyle's law may be represented as

asked Feb 28, 2014 by sharmaaparna1

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Which of the following groups are the following groups are ortho, para directing ? $ \\ (i) -NH_2 \quad\quad\quad (ii)\; -N-C -CH_3 \quad\quad\quad (iii)\;-CN \quad\quad\quad(iv)\; -SO_3H$

asked Feb 28, 2014 by meena.p

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A compound X is formed when acetaldehyde condenses with ethyl amine.X on further catalytic hydrogenation $(H_2/Ni)$ will yield

asked Feb 28, 2014 by sreemathi.v

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An alloy of Copper , Silver and Gold is found to have Copper constituting the C.C.P lattice. If Silver atoms occupy the edge centres and Gold is present at body centre , the alloy will have the formula:

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In the below sequence Y is

asked Feb 28, 2014 by sreemathi.v

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The compound formed by elements X and Y crystallizes in cubic structure in which X atoms are at the corners of the cube and Y atoms are at the face centre . The formula of the compound is

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A positive carbylamine test is given by

asked Feb 28, 2014 by sreemathi.v

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In a face centred cubic arrangement of A and B atoms whose A atoms are at the corner of the unit cell and B atoms at the face centered. One of the A atom is missing from one corner in unit cell. The simplest formula of compound is

asked Feb 28, 2014 by sharmaaparna1

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Which of the following statement are true for the organoborance ? (i) It can be thermally rearranged (ii) It can be oxidised to 3-pentanol (iii) It can be converted to pentane (iv) None of these.

asked Feb 28, 2014 by meena.p

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The major product obtained on heating of $CH_3CH_2CH_2CH_2N^{\oplus}(CH_3)_3OH^{\ominus}$

asked Feb 28, 2014 by sreemathi.v

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The ratio of closed packed atoms to tetrahedral holes in cubic close packing is

asked Feb 28, 2014 by sharmaaparna1

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Kjeldahl's method cannot be used for estimation of nitrogen in $(i)\; C_6H_5NO_2 ;\; (ii)\;Pyridine; \;(iii)\;C_6H_5 - N = N -C_6H_5 ;\;(iv)\;C_6H_5NHCOCH_3 $

asked Feb 28, 2014 by meena.p

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Which of the following statement is correct?

asked Feb 28, 2014 by sreemathi.v

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Sandmeyer's reaction can be represented by

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Hinsberg's reagent is

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The reduction of nitro benzene with $Zn/NH_4Cl$(aq) gives

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The major product obtained in the following reaction is

asked Feb 28, 2014 by sreemathi.v

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