List of top Chemistry Questions

Which of the following molecules is eliminated during peptide bond formation?
Arrange the following in increasing order of their reactivity for nucleophilic addition reaction:
Arrange the following in increasing order of their reactivity for nucleophilic addition reaction:
Identify the major product formed in the following reaction sequence:
ch3cocl/anhyd alcl3
In the presence of peroxide, styrene reacts with HBr to give X. When X is treated with magnesium in dry ether followed by CO$_2$ and hydrolysis, Y is formed. Treatment of Y with PCl$_5$, then with H$_2$/Pd-BaSO$_4$ gives Z. What is Z?
Identify the major product formed from the following:
Nai/dry acetone
When 1-chlorobutane is treated with aqueous KOH it gives P. However, when treated with alcoholic KOH it gives Q. Identify P and Q respectively.
The catalyst used in the manufacture of polyethylene is a mixture of
Photographic plates are prepared by coating emulsion of which of the following in gelatin?
Assertion (A): HCl gas is dried by passing through concentrated H$_2$SO$_4$
Reason (R): HCl gas reacts with NH$_3$ that gives white fumes
The diameter range of colloidal particles is approximately:
Which of the following is correct related to the colours of TiCl$_3$ (X) and [Ti(H$_2$O)$_6$]Cl$_3$ (Y)?
What are x and y in the following reaction?
$x \text{Pb}_3\text{O}_4 \rightarrow y \text{PbO} + \text{O}_2$
Assertion (A): Blood cells collapse when suspended in saline water
Reason (R): Cell membrane dissolves in saline water
The number of network solids and ionic solids in the list given below is respectively
H$_2$O (ice), AlN, Cu, CaF$_2$, diamond, MgO, CCl$_4$, ZnS, Ag, NaCl, SiO$_2$
If molten NaCl contains SrCl$_2$ as impurity, crystallization can generate
The compound or ion which is not aromatic in the following is
The reduction potential of hydrogen electrode at 25°C in a neutral solution is (P$_{H_2}$ = 1 bar)
Which of the following tetrahalides does not exist?
Identify the correct statements about Boron:
I. It has high melting point.
II. It has high density.
III. It has high electrical conductivity.
IV. B-10 isotope of it has high ability to absorb neutrons
What are X and Y respectively in the following reactions?
\( \text{X} + \text{D}_2\text{O} \rightarrow \text{CD}_2 + \text{P} \)
\( \text{Y} + \text{D}_2\text{O} \rightarrow \text{CD}_4 + \text{Q} \)
The correct order of acidity of the following is:
order of acidity
Equal volumes of 0.5 N acetic acid and 0.5 N sodium acetate are mixed. What is the pH of resultant solution?
(\( \text{p}K_a \) of acetic acid = 4.75)
Among the gases a, b, c, d, e, and f, the gases that show only positive deviation from ideal behavior at all pressures in the graph are:
Among the gases a, b, c, d, e, and f, the gases
The statement related to law of definite proportions is:
The formation of ammonia from its constituent elements is an exothermic reaction. \ The effect of increase in temperature on the reaction equilibrium is: