List of top Chemistry Questions

MnO exhibits:

The compound is

The correct decreasing order of boiling points of hydrogen halides is:

In the following scheme of reaction.

X, Y and Z respectively are:

Which of the following statements related to lanthanoids is incorrect?

PCC is:

$NO_2$ gas is :

Which of the following halides cannot be hydrolysed?

Gold sol is not a:

The first chlorinated organic insecticide prepared is:

In the analysis of III group basic radicals of salts, the purpose of adding NH₄Cl (solid) to NH₄OH is:

0.48 g of an organic compound on complete combustion produced 0.22 g of CO₂. The percentage of C in the given organic compound is:

For the reaction PCl5​→PCl3​+Cl2​, the rate and rate constant are 1.02×10−4mol L−1s−1 and 3.4×10−5s−1, respectively, at a given instant. The molar concentration of PCl5​ at that instant is:

Identify the wrong relation for real gases:

For which one of the following mixtures is composition uniform throughout?

The energy associated with the first orbit of He+ is:

2-Methylpropane can be prepared by Wurtz reaction. The haloalkanes taken along with metallic sodium and dry ether are:

Which of the following set of polymers are used as fibre?
(i) Teflon
(ii) Starch
(iii) Terylene
(iv) Orlon

A haloalkane undergoes $S_{N^2}$ or $S_{N^1}$ reaction depending on:

Which one of the following nitrates will decompose to give NO₂ on heating?

The type of linkage present between nucleotides is:

Which one of the following is a cationic detergent?

For the coagulation of positively charged hydrated ferric-oxide sol, the flocculating power of the ions is in the order: