List of top Chemistry Questions

Which of the following is the IUPAC name for $CH_3CH_2CH_2OH$?

What is the hybridization of the central atom in $NH_3$?

Vapour pressure of water at 293 K is 17.535 mm Hg. Calculate the vapour pressure of water at 293 K when 25 g of glucose is dissolved in 450 g of water.

The mass of 60% HCl by mass required for the neutralisation of 10 L of 0.1 M NaOH is

Draw all the isomers (geometrical and optical) of:
(i) $[CoCl_2(en)_2]^{+}$
(ii)$ [Co(NH_3)Cl(en)_2] ^{2+} $
(iii)$ [Co(NH_3)_2Cl_2(en)]^{+}$

$0.833$ mole of a carbohydrate with empirical formula $CH_{2}O$ , has $10\, g$ of hydrogen. Molecular formula of the carbohydrate is

Define the term solution. How many types of solutions are formed? Write briefly about each type with an example.

How would you account for the following:

Of the d⁴ species, Cr²⁺ is strongly reducing while manganese(III) is strongly oxidising.
Cobalt(II) is stable in aqueous solution but in the presence of complexing reagents it is easily oxidised.
The d¹ configuration is very unstable in ions.

Comment on the statement that elements of the first transition series possess many properties different from those of heavier transition elements.

Which of the following is/are endothermic reaction(s)?

Choose the correct statement:

Which one is not correct mathematical equation for Dalton's Law of partial pressure? Here p = total pressure of gaseous mixture

The equilibrium concentrations of the species in the reaction A+B$\to$C+D are 2, 3, 10 and 6 mol L^–1, respectively at 300 K. ΔGº for the reaction is (R = 2 cal/mol K)

A compound is formed by two elements A and B. The element B forms cubic close packed structure and atoms of A occupy $\frac 13$ of tetrahedral voids. If the formula of the compound is A,By. then the value of x +y is in option

Which of the following is not an EWG (Electron Withdrawing Group)?

CrO$_3$ is _____ oxide?

Radius order of $Yb^{3+}, La^{3+}$, $Ce^{3+}$, $Pm^{3+}$?

Increasing ionic radii of lanthanoids having +2 oxidation state?

For a first-order reaction, if the rate constant is $ k = 6.93 \times 10^{-3} $, what is the half-life ($ t_{1/2} $) of the reaction?

In the given reaction Product A is: