List of top Chemistry Questions asked in COMEDK UGET

KMnO$_4$ acts as an oxidising agent in acidic medium. The number of moles of KMnO$_4$ that will be required to react with one mole of oxalate ions (to form CO$_2$) in acidic solution is:
The colour of \( \text{CrO}_4^{2-} \) changes to \( \text{Cr}_2\text{O}_7^{2-} \) is
Which of the following gas readily de-colourises the acidified KMnO\(_4\) solution?
Which of the following gas readily de-colourises the acidified KMnO\(_4\) solution?
The P – O bond order in \( \text{PO}_4^{3-} \) is
Which of the following is highly basic?
Barbiturates are used to treat
The monosaccharides of maltose is
On treatment of glucose with bromine water the product formed is
Which of the following vitamin is responsible for beri-beri disease?
The Paschen series of hydrogen spectrum lies in which region?
pH of \(10^{-3}\) M solution of KOH is
The complex which does not show optical isomerism is
How many atoms are present in hcp per unit cell?
Which of the following statement is incorrect for \( \mathrm{H_2O_2} \) structure?
Which of the following molecules does not exhibit dipole moment?
(i) CCl$_4$
(ii) CO$_2$
(iii) NH$_3$
(iv) CHCl$_3$
(v) H$_2$O
(vi) CH$_3$–O–CH$_3$
What is the function of platelets?
Increasing order of bond order of oxygen and its ions is
O\(_2^{−}\), F\(^−\), Mg\(^{2+}\), Al\(^{3+}\), O\(_2\), F\(_2\). How many of the species given above are isoelectronic?
The oxidation state of nickel in [Ni(CO)_4] is
The essential amino acid are
(i) Leucine
(ii) Glutamic acid
(iii) Asparagine
(iv) Valine
Choose the correct option from the following:
The system that forms maximum boiling azeotropes is
For the reaction, H$_2$(g) + I$_2$(g) ⇌ 2 HI(g), the position of equilibrium can be shifted to the right by
Alkyl halides undergoing \( S_N2 \) reaction do inverse
The process of aggregation of colloidal particles into an insoluble precipitate by the addition of suitable electrolyte is called