List of top Chemistry Questions asked in NEET (UG)

When 1 mol gas is heated at constant volume temp. is raised from 298 to 308 K. Heat supplied to the gas is 500 J. Then which statement is correct : -
A human body required the 0.01 Curie activity of radioactive susbtance after 24 hours. Half life of radioactive is 6 hours. Then max. activity of radioactive sustance that can be injected will be 

When a bio chemical reaction is carried out in laboratory out side the human body in the absence of enzyme, then the rate of reaction obtained is \(10^–6\) times, than activation energy of reaction in the presence of enzyme is

Solubility of a \(M_2S\) salt is \(3.5 \times 10^{–6}\) , then find out solubility product.

When a biochemical reaction is carried out in laboratory from outside of human body in the absence of enzyme, the rate of reaction obtained is $10^{-6}$ times, then activation energy of the reaction in the presence of enzyme is
The beans are cooked earlier in pressure cooker, because
The correct acidic order of following is
Specific volume of cylindrical virus particle is $6.02 \times 10^{-2}$ cc/g, whose radius and length are $7 \mathring{A} \, and \, 10\mathring{A}$ respectively. If $N_A = 6.023 \times 10^{23},$ find molecular weight of virus.
Which of the following is incorrect : -
obtained by chlorination of n-butane, will be
In preparation of alkene from alcohol using $ Al_2 O_3$, which is effective factor?
An organic compound $A(C_4 H_9 C1)$ on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative, then A is
A compound of molecular formula $C_7H_{16}$ shows optical isomerism, compound will be
For the reaction, $2N_{2}O_{5} \to 4NO_{2} + O_{2}$ rate and rate constant are $1.02 \times 10^{-4}\,mol\, L^{-1} s^{-1}$ and $3.4 \times 10^{-5} s^{-1}$ respectively. The concentration of $N_{2}O_{5}$ in mol $L^{-1}$ will be
Correct order of 1st ionisation potential (IP) among following elements Be, B, C, N, O is
Which of the following is correct about $H$-bonding in $DNA$?
Which one of the following gives positive Fehling's solution test?
Intermediates formed during reaction of RCNH2||O with Br2 and KOH are
The incorrect IUPAC name is
In steam distillation of toluene, the pressure of toluene in vapour is
Half life period of C14 is
Which of the following is not correctly matched
Which is not correct regarding the adsorption of a gas on surface of solid
Pure water can be obtained from sea water by
Ionisation constant of $ CH_3COOH $ is $ 1.7 \times 10^{-5} $ and concentration of $ H^+ $ ions is $ 3.4 \times 10^{-4} $ . Then, find out initial concentration of $ CH_3COOH $ molecules.