List of top Questions asked in NEET (UG)

Which one of the following molecules contains no π bond ?
Antiseptics and disinfectants either kill or prevent growth of microorganisms. Identify which of the following statements is not true
Among the following ethers, which one will produce methyl alcohol on treatment with hot concentrated HI?
The structure of isobutyl group in an organic compound is
Identify the correct order of solubility in aqueous medium
An excess of AgNO3 is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be
Which of these is least likely to act as a Lewis base ?
Which of the following is electron-deficient?
Structure of the compound whose IUPAC name is 3- Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is
Which of the following structure is similar to graphite ?
The basic structural unit of silicates is
Reaction by which Benzaldehyde cannot be prepared
Which of the following does not give oxygen on heating ?
The number of carbon atoms per unit cell of diamond unit cell is
Maximum deviation from ideal gas is expected from
A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g cm-3. The molar mass of the metal is
(NA Avogadro's constant = 6.02 × 1023 mol-1)
Dipole-induced dipole interactions are present in which of the following pairs ?
Roasting of sulphides gives the gas X as a by-product. This is a colorless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic acts as a reducing agent and its acid has never been isolated. The gas X is
Based on equation E = -2.178 x 10-18 J\((\frac{Z^2}{n^2})\) certain conclusions are written. Which of them is not correct ?
A button cell used in watches functions as following
Zn(s) + Ag2O(s) + H2O(l) ⇌ 2Ag(s) + Zn2+ (aq) + 20H- (aq)
If half cell potentials are
Zn2+(aq) + 2e- → Zn(s); E° = -0.76 V
Ag2O(s) + H2O(l) + 2e- → 2Ag(s) + 20H-(aq),
E° = 0.34 V
The cell potential will be
How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO3? The concentrated acid is 70% HNO3.
A coil is self-inductance $L$ is connected in series with a bulb $B$ and an $AC$ source. Brightness of the bulb decreases when :
The characteristics of class Reptilia are
Crystal field stabilisation energy for high spin $d^4$ octahedral complex is
The anion of acetylacetone (acac) forms $Co (acac)_3$ chelate with $Co^{3+}$. The rings of the chelate are :