19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
In which bond angle is the highest
Underlined carbon is sp3 hybridised in (a) CH CH CH (b) CH CH NH (c) CH CONH (d) CH CH CN
Due to the presence of an unpaired electron, free radicals are
These two conformers exist in a state of dynamic equilibrium. Which one is more stable?
Which of the following is aromatic? GENERAL ORGANIC CHEMISTRY
Which among the following free radicals is most stable? (a) (b) (c) (d) GENERAL ORGANIC CHEMISTRY
Which of the following statements is correct about methyl group?
The IUPAC name of is (AIPMT 2006)
An ideal gas equation is arranged as X P M RT M = molecular mass Where, X represents
Which of the following expression is true for an ideal gas ? (a) P V T P V T (b) V V T T P P (c) P T V P T V (d) P VT P V T
An ideal gas equation is also called the …I… Here, I refers to
Which one of the following is not the value of gas constant (R)? (a) 0.0821 L atm k mol (b) 1.99 cal K mol (c) 8.3 JK mol (d) 10.2 JK mol
The value of universal gas constant (R) depends on
In the gas equation PV = nRT, the value of n depends upon
Equal volumes of oxygen and an unknown gas weigh 3.00g and 7.50g, respectively. Which of the following is the unknown gas?
In the gas equation PV = nRT, the value of R depends upon
When the temperature of 23 ml of dry CO2 gas is changed from 10º to 30ºC at constant pressure of 760 mm, the volume of gas becomes closest to which one of the following ?
Avogadro’s hypothesis states that
‘Equal volumes of all gases under the same conditions of temperature and pressure contains equal number of molecules’. This is known as
Avogadro’s law is the combination of I. Charles’ law. II. Boyle’s law. III. Dalton’s atomic theory. IV. Gay lussac’s law of combining volume Select the correct option.
Which of the following represent Gay Lussac’s law? I. P constant T II. P T P T III. P V P V Choose the correct option.
A balloon is filled with hydrogen at room temperature. It will burst, if pressure exceeds 0.2 bar. If at 1 bar pressure the gas occupied 2.27 L volume, up to what volume can be balloon be expanded?
What will be the minimum pressure required to compress 2 Litre of gas at 1 bar to 1 litre at 25oC?
A relationship is obtained between density and pressure of a gas as follows
The volume of ammonia obtained by the combination of 10 mL of N2 and 30 mL of H2 is :