List of top Chemistry Questions

IUPAC Name of the compound IUPAC Name of the compoundis
A gas ‘X’ is added to Nessler’s reagent then brown precipitate is formed, gas X is
In chromatographic techniques, which of the following follows preferential adsorption?
  1. Column chromatography
  2. Thin layer chromatography
  3. Paper chromatography
Match the following: 
 LIST I LIST II
ALymanINear IR
BBalmerIIFar IR
CPaschenIIIVisible
Dp-fundIVUV
The correct statement about Zn, Cd, Hg are
The major product
The major product in the above reaction is
A \(10\) \(mL\) hydrocarbon \((C_2H_4)\) on combustion give \(40\) \(mL\) \(CO_2\) and \(50\) \(mL\) \(H_20\). Calculate the value of \(x+y\)
Which is homoleptic complex?
Statement I: \([Ni(H_2O)_6]^{2+}\) is green in colour.
Statement II: \([Ni(ON)_4]^{2-}\) is colourless.
Magnetic behavior of \(Ni^{2+}\) with strong ligand
Moles of \(CH_4\) required for formation of \(22\) \(g\) of \(CO_2\) is \(m \times 10^{-2}\) The value of \(m\) is:
The total number of different alkanes formed when the following mixture is subjected to electrolysis: \(CH_3COONa (aq)\) and \(C_2H_2COONa (aq)\)is (do not consider disproportionation reaction)
If one faraday of electricity is used in the discharging of \(Cu^{2+}\), then find the mass (ing) of \(Cu\) deposited (nearest integer)
The spin only magnetic moment of complex ion \([Ni(NH_3)_6]^{2+}\)+ is \(X \times 10^{-1}\) \(BM\). The value of \(X\) is
Rms velocity of hydrogen at which temperature is equal to that of the oxygen molecule at \(47 \degree\)
Some amount of dichloromethane $\left( CH _2 Cl _2\right)$ is added to $671.141 \,mL$ of chloroform $\left( CHCl _3\right)$ to prepare $2.6 \times 10^{-3} M$ solution of $CH _2 Cl _2$ (DCM) The concentration of DCM is ______$ppm$ (by mass) Given: atomic mass : $C =12$ $H =1$ $Cl =35.5$ density of $CHCl _3=1.49\, g \,cm ^{-3}$
A pair of compounds having the same boiling points are
Solid fuel used in rocket is a mixture of Fe₂O₃ and Al (in ratio 1 : 2) the heat evolved (KJ) per gram of the mixture is ______ (Nearest integer)
Given \(\Delta H_f^{\circ}(Al_2O_3) = -1700 \, \text{KJ mol}^{-1}\)
\(\Delta H_f^{\circ}(Fe_2O_3) = -840 \, \text{KJ mol}^{-1}\) }
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Helium is used to dilute oxygen in diving apparatus.
Reason R: Helium has high solubility in O2.
In the light of the above statements, choose the correct answer from the options given below.
The electronic configuration of Cu2+ (Z = 29) is:
Identify one anionic radical in the given inorganic salt ``M$_3$'' by performing dry and wet tests.
Identify one cationic radical in the given inorganic salt ``M$_3$'' by performing dry and wet tests.
Identify one functional group in the given organic compound O₃.
Prepare soap in the laboratory and submit it for inspection.
Determine the presence of nitrogen atom in the given organic compound O₃.