19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Consider the following compounds: Hyperconjugation occurs in (NEET 2015)
Which of the following statements is not correct for a nucleophile? (NEET 2015)
The enolic form of ethyl acetoacetate as shown below has (NEET 2015)
Given: Which of the given compounds can exhibit tautomerism? (NEET 2015)
The total number of -bond electrons in the following structure is (NEET 2015)
What is the hybridisation state of benzyl carbonium ion ? (NEET 2013)
CH CH
Arrange the following in increasing order of stability. (NEET 2013) 1. CH C CH CH 2. CH C 3. CH CH
Structure of the compound whose IUPAC name is 3- ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is (NEET 2013) (a) (b) (c) (d)
The structure of isobutyl group in an organic compound is (NEET 2013)
Which nomenclature is not according to IUPAC system? (AIPMT 2012) (a) (b) (c) (d)
The correct IUPAC name for the compound is (AIPMT 2011)
The IUPAC name of the following compound is CH2 = C = CH — CH3 (CPMT 2011)
Which of the following species is not electrophilic in nature? (AIPMT 2010)
At room temperature, the eclipsed and staggered forms of ethane cannot be isolated because (AFMC 2010)
The total number of isomers of C4H7OH is (CPMT 2010)
Which of the following species is paramagnetic in nature? (CMC 2010)
Which of the following is the most stable carbocation? (CPMT 2010) (a) C H CH (b) CH C
The correct order of acidity of the following compounds is (CPMT 2010)
IUPAC nomenclature of is (AFMC 2010)
In the following the most stable conformation of n- butane is (AIPMT 2010) (a) (b) (c) (d)
The density of neon will be highest at
For an ideal gas, number of moles per litre in terms of its pressure P, temperature T and gas constant R is
The closed containers of the same capacity and at the same temperature are filled with 44g of H2 in one and 44g of CO2 in the other. If the pressure of carbon dioxide in the second container is 1 atm. That of hydrogen…
Dry ice is solid carbon dioxide. A 0.050 g sample of dry ice is placed in an evacuated 4.6 L vessel at 30ºC. Calculate the pressure inside the vessel after all the dry ice has been converted to CO2 gas.