List of top Chemistry Questions

Fish die in water bodies polluted by sewage due to

First ionisation energy of alkali metals is very low but second ionisation energy is very high because

Few polymers are matched with their uses. Point out the wrong match.

$[FeF_{6}]^{3-}$ is paramagnetic due to presence of unpaired electrons in the complex. The five electrons remain unpaired because

$Fe(OH)_3$ sol can be more easily coagulated by $Na_3PO_4$ in comparison to $KCl$ because

$ {[Fe(CN)6]^{4-}, [V(CN)6]^{4-}, [Cr(NH3)6]^{2+}}$ and $ {[Ru(CN)6]^{3-}}$ Find the decreasing order of spin only magnetic moment

$ {[Fe(H2O)6]2 [Fe(CN)6]}$ Cationic and anionic species spin only magnetic moment in Bohr magneton is :

$Fe_2(CO)_9$ is diamagnetic. Which of the followingreasons is correct ?

$Fe^{3+}$ compounds are more stable than $Fe^{2+}$ compounds because

Fac, mer isomerism is associated with which of the following general formula ?

Extent of adsorption of adsorbate from solution phase increases with_________ .

F.C. reaction of benzene with isobutyl chloride produces

Examples of three detergents are given below. Mark the correct statement following the examples. $(I) CH_{3}(CH_{2})_{10}CH_{2}OSO_{3}^{-}Na^{+}$

Example of addition polymer is

Example of a three-dimensional silicate is:

Ethylene can be prepared by the electrolysis of aqueous solution of :

Ethylene dichloride and ethylidene chloride are isomeric compounds. The false statement about these isomers is that they

Ethyl alcohol on,oxidation with $K_2Cr2O_7$ gives

Ethylbenzene with $Br_2$ in the presence of $FeBr_3$ gives

Ethyl alcohol is obtained when ethyl chloride is boiled with

Ethers are isomeric with

Ethers have lower boiling points than their corresponding isomeric alcohols because of

Ethyl alcohol and dimethyl ether are functional isomers. The boiling point of ethyl alcohol is higherdue to the presence of :

Ethanol is soluble in water due to

The reactivities of ethane, ethene and ethyne are of the order