List of top Questions asked in GPAT

Which among the following Cephalosporins has an unusual 5-thio-1,2,3,4-tetrazole substituent attached to core heterocyclic nucleus through a methylene bridge?
Amphetamine undergoes one of the following metabolic reaction to convert to 1-phenyl-2-propanol metabolite via ketone formation:
Which one of the following molecules has a dipole moment?
Identify pair of C4 epimers:
Phenol reacts with chloroform in presence of aqueous sodium hydroxide to give chief product:
In atomic absorption spectroscopy, back ground correction performed using a single hollow cathode lamp pulsed first with a low current and then with a high current is called:
Replacement of the diazonium group by halogen in presence of copper powder is:
Which of the following ICH Hannonized Tripartite Guidelines related to stability, provides the general requirements for stability, testing of new drug substances and products?
_____ is an example of aromatic nucleophilic substitution reaction.
All the following about back nitration are true, EXCEPT
Which of the following factor make carbonyl group in acyl compounds, too, susceptible to nucleophilic attack?
The tendency of carbon to loose electrons even at the expense of gaining positive chargeIdentify intermediate forms in following substitution reaction:
tendency of carbon to loose electrons even at the expense of gaining positive chargeIdentify intermediate forms
Addition of HBr to 1.3-butadiene at 40°C yields:
When exposed to carbon monoxide, the base pigment of Cytochrome P enzymes absorb light at:
A = Br2, B = KOH, C = NaNH2 Which heterocyclic ring is fused to a steroidal nucleus in Danazol?
Identify A, B and C in below reaction:
Identify A, B and C in below reaction:
Conversion of cyclic ketone to ring expended cyclic ester takes place by:
Which of the following is not a sulphonamide derivative?
Aklyl group in Grignard reagent serve as
The addition of Monobasic Potassium Phosphate to the suspended Bismuth Subnitrate particles cause the A to B owing to the C:
Carbohydrates have hydrogen oxygen atom ratio of:
The potential of the calomel electrode depends upon
The drug price control order (DPCO) is an order issued by the Government under the____ which enables it to fix the prices of some essential bulk and their formulations
The most efficient heat exchange between the particles and flowing air occurs in the____.
Shift from ‘try my product’ to ‘prefer my brand’ marketing strategy is done at what stage of product life cycle?