NEET questions
18092 published questions with worked solutions.
- 250 N force is required to raise 75 kg mass from a pulley. If rope is pulled 12 m then the load is lifted to 3m, the efficiency...
- A photo-cell is illuminated by a source of light, which is placed at a distance d from the cell. If the distance become d/2, then...
- A 1 kg stationary bomb is exploded in three parts having mass 1 : 1 : 3 respectively. Parts having same mass move in...
- Energy is released in nuclear fission is due to
- CH _3 –CH _2 –CH(Cl)–CH _3 obtained by chlorination of n-butane, will be : -
- Which alkene on ozonolysis gives CH _3 CH _2 CHO and CH _3 COCH _3 : -
- Intermediates formed during reaction of RCONH _2 with Br _2 and KOH are : -
- An organic compound A( C _4 H _9 Cl ) on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only...
- Which of following give positive Fehling solution test
- The incorrect IUPAC name is : -
- In preparation of alkene from alcohol using Al _2 O _3 which is effective factor : -
- Which of the following is correxct about H-bonding in nucleotide : -
- - C (= O )- N H - (peptide bond) which statement is incorrect about peptide bond : -
- In steam distillation of toluene, the pressure of toluene in vapour is : -
- A compound of molecular formula is C _7 H _ 16 shows optical isomerism, compound will be
- Change in enthalpy for reaction 2 H _2 O _2(l) 2 H _2 O (l) + O _2(g) If heat of formation of H _2 O _2(l) and H _2 O (l) are...
- 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...
- Enthalpy of CH _4 + 1 2 O _2 CH _3 OH is negative. If enthalpy of combustion of CH _4 and CH _3 OH and x and y respectively. Then...
- For the reaction 2 N _2 O _5 4 NO _2 + O _2 rate and rate constant are 1.02 10^ -4 and 3.4 10^ -5 sec ^ -1 respectively. Then...
- When a bio chemical reaction is carried out in laboratory out side the human body in the absence of enzyme, then the rate of...