The MCQ covered here comprise of questions from 76 to 100. Every GPAT MOCK TEST MCQ are divided into 25 questions in each part. This is the 4th part of GPAT 2022 question. Most of the question in these section are asked from chemistry portion that includes name reaction and basic organic chemistry sections. Some question from biochemistry is also covered.
If you have analysed the previous year question paper, then you must have known that Chemistry shares a major portion of GPAT question paper. Therefore, students must cover all the conceptual questions asked from chemistry to secure good marks.
While making the MCQ of previous year, i do have analysed that question from NAMED REACTION and Identification of aromatic, non-aromatic and anti-aromatic structures are asked every year in GPAT. So, students must not forget to cover such questions. Go for practicing the below MCQ to brushup your knowledge.
`Star spots` present in the transverse section of decorticated Rhubarb rhizomes are - Concentric vascular bundles
The best quality of the Lemon oil is obtained by using - Hand press method
Type of alkaloids present in Colchicum - Amino alkaloids
HPTLC analysis is useful for following types of analysis of herbal drugs
A. Quantitative estimation of marker compound B. Authentication of extracts C. Detection of pesticides D. Standardization of herbal drugs Choose the correct answer from the options given below - A, B, C and D
Anthranilic acid is an immediate precursor in the formation of - Tryptophan
Which of the above are true for Rutin
A. Rutin is a Bioflavonoid B. Rutin is a flavonol glycosides C. Rutin is used in Capillary bleeding D. Rutin is used as Vitamin P - All of these
Tropane nucleus is combination of - Pyrolidine & piperidine
Stability index, determined for evaluating the stability of oil water viscous emulsions, based on electric conductivity changes during non-destructive short heating-cooling- heating cycles
A. is defined as A/h, where h is the change in the conductivity between 35°C and 45°C and A is the conductivity interval within the two heating curves at 35°C B. indicates the relative change in enthalpy between two cycles C. is defined as 24/h, where h is the change in the conductivity between 35°C and 45°C and & is the conductivity interval within the two heating curves at 35°C D. indicates the relative change in conductivity between two cycles
Choose the correct answer from the options given below - D and A only
When alkenes are epoxidised with optically active peracids, optically active epoxides are formed Under the same defined conditions, epoxidation of E-but-2-ene by peroxycamphoric acid affords unequal yields of enantiomeric epoxides However, a similar epoxidation of Z-but-2-ene can only afford - Meso epoxide
In the case of halogenation reaction of alkanes, abstract of primary hydrogen yields a primary radical, and abstract of secondary hydrogen yields a secondary radical The above example is of
R-H + Br- ------> R+ +H-Br - Low reactivity and high selectivity
Phenol upon treatment with bromine in the presence of carbon disulphide at 0 °C yields - 4-Bromophenol
Identify the major product formed in the above reaction from the four choices listed below
- (S)-(+)-2-methylbutanoic acid
Among the following organic compounds, the one that is non- aromatic is
- D
Identify which statement among the following is true in case of E2 and SN2 - Primary substitution undergoes slow elimination and fast substitution
When 100 ml. of 0.1 M sodium hydroxide solution is added to 100 ml of 01 M acetic acid(Ka = 1.82 x 10-5), pH of the solution will be - 8.7
Insertion of an oxygen in a carbonyl compound to form an ester is known as - Baeyer Villiger oxidation
Identify the product formed when 2-cholestene is treated with Br2 - 2β 3α-dibromocholestane
Controlled alkylation of a ketone via an enamine intermediate is named as - Stork reaction
Heme is - Iron containing tetrapyrrole
Isobutane upon bromination under the influence of ultraviolet light at 127 °C affords the following major product - tert-Butyl bromide
Identify the correct descending order of strength of nucleophilic solvents from the below-given options - Methanol, acetic acid, formic acid, trifluoroethyl alcohol
The major product formed in the above-given Knorr synthesis is
- A
Match the statements in List with their correct answers in List II, respectively, in respect to modified 1st law of thermodynamics, and Choose the correct answer from the options given below
- A-III, B-I,C-II, D-IV
Ethylketazocine is a 6,7-benzomorphan derivative with receptor selectivity - Kappa-opioid
In the determination of configuration of glucose, Fischer subjected (-) arabinose to Ruff`s degradation. The four-carbon sugar obtained by the degradation process was - (+) Erythrose
- (S)-(+)-2-methylbutanoic acid
- D
- A
- A-III, B-I,C-II, D-IV