NEET 2021 exam dates are finally announced! Dear NEET aspirants, it’s time for your revisions. Here are some of the NEET Chemistry important Q/As (Questions with Answers)! Never miss this chance… Quickly learn how to answer these frequently asked or important NEET chemistry questions…
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Hitherto, the periodic postponement of the NEET 2021 exam made both students and scholars anxious regarding the conduct of NEET 2021. But, with yesterday’s latest news announced by our central education minister, the NEET 2021 undergraduate medical entrance exam will be administered on Sep 12, 2021. According to NDTV-Education, the registrations for the upcoming NEET (UG) 2021 exam have opened already… (5 pm on 13th July 2021).
On the other side, experts predict that the board may require at least one to two months buffer after the date of issue of application forms. In addition, a lineup of processes including application processing, correction window, center allotment, etc has to be taken care of.
Visit this site for the official news bulletin regarding NEET (UG) 2021 exam!
Or, try looking at the official NTA site (National Testing Agency) for more information!
As per the new exam pattern for NEET (UG) 2021, each subject will encompass two sections namely Sec A and Sec A.
Note: Unfortunately, the Education Minister has already clearly stated that the syllabus for NEET (UG) 2021 exam will not get reduced. In spite of this, the students can expect to get some relief in terms of the number of questions they need to attempt. Nevertheless, NEET aspirants like you have to wait for the official news from the NTA. Meanwhile, going through the articles like “NEET Chemistry important Q/As” can really boost your confidence.
Started your revisions already? Checklist the Do or Die Chapters and topics for NEET Chemistry 2021
Are you are worried about how to start and how much time to allot?
Never mind! Here is a quick guide…
| Subjects | Weightage | Time to be allotted for revision | Time to be allotted day before the exam |
|
20% | 6 hours | 1 hour |
|
32% | 10 hours | 2 hours |
|
12% | 4 hours | 1 hour |
|
18% | 5 hours | 1 hour |
|
18% | 5 hours | 1 hour |
| Total | 100% | 30 hours | 6 hours |
Beyond the time allocation, you need to know some useful tips and tricks! Explore the blog How to crack NEET Chemistry (score at least 160) at ease?
Here are some of the important questions asked in the previous NEET (UG) question papers. From this, you can get a fair idea of what kind of questions you should expect in NEET Chemistry 2021.
How helpful, right? Get started with your revisions now!
Question: 1
If Avogadro no. is changed from 6.022x 1023 mol-1 to 6.022×1020 mol-1, this would change _______.
If Avogadro o. is changed from 6.022×1023mol−1 to 6.022×1020mol−1, this would change
Question: 2
At S.T.P. the density of CCl4 vapor in g/L will be nearest to _______.
According to Avogadro’s law,
Thus mass of at STP =154g
The volume occupied by at STP =22.4L
Density is defined as the mass contained per unit volume.
Density =6.875g/L
Question: 3
Oxalic acid when heated with H2SO4 gives:
Oxalic acid reacts with concentrated sulfuric acid to produce a mixture of carbon monoxide, carbon dioxide, and water.
oxalic acid (COOH)2+conc.H2SO4→CO+CO2+H2O
Question: 4
Which of the following will have Zero dipole moment?
This is a hard category question.
BF3, BeF2, CO2 , and 1, 4-dichloro benzene all are symmetrical structures.
Question: 5
The reaction occuring between acetophenone and benzaldehyde in the presence of dilute NaOH is called:
(This question also belongs to the hard category.)
Cannizzaro is a chemical reaction that involves the base-induced disproportionation of two molecules of a non-enolizable aldehyde to give primary alcohol and a carboxylic acid.
Aldol condensation occurs in aldehydes/ketones having α-hydrogen with a dilute base to give β-hydroxy aldehydes called aldols.
If the condensation reaction occurs between two different aldehyde/ketone compounds it is called crossed aldol condensation.
Question: 6
An increase in the concentration of the reactants of a reaction leads to change in:
Collision frequency ∞ number of reactant molecules per unit volume.
As the concentration of reactants of a reaction increases, the number of reactant molecules per unit volume increases. This further increases the collision frequency.
Need more such important/ frequently asked questions with answers?
We’re about to launch NEET (UG) Chemistry 2021 Mock Test Practice Papers…!
These are some of the questions asked in NEET 2020. Check if you can solve them? If no, start learning from now…
Question: 1
Identify the correct statements from the following:
(a) CO2(g)CO2(g) is used as a refrigerant for ice cream and frozen food.
(b) The structure of C-60 contains twelve six-carbon rings and twenty-five carbon rings.
(c) ZSM−5ZSM−5, a type of zeolite, is used to convert alcohol into gasoline.
(d) COCO is a colorless and odorless gas.
(1)CO2(s)CO2(s) (dry ice) is used as a refrigerant for ice cream and frozen food [not CO2(g)CO2(g)].
(2) The structure of C-60 contains twelve 6C rings and twelve 5C rings.
(3) (A type of zeolite) ZSM−5ZSM−5 is used to convert alcohols directly into gasoline.
(4) CO(g)CO(g) is a colorless and odorless gas
Question: 2
Identify the incorrect match:
Name IUPAC Official Name A Unnilunium i Mendelevium B Unniltrium ii Lawrencium C Unnilhexium iii Seaborgium D Unununnium iv Darmstadtium
| Atomic number | Name | IUPAC official name |
| 101 | Unnilunium | Mendelevium |
| 103 | Unniltrium | Lawrencium |
| 106 | Unnilhexium | Seaborgium |
| 111 | Unununnium | Roentgenium |
The IUPAC offical name of Unununnium is Roentgenium. Specifically, the element (Z=110) is ununnilium. The IUPAC official name Darmstadtium matches Ununnilium.
Question: 3
Which of the following set of molecules will have zero dipole moment?
The species with polar bonds and shall be non-polar i.e., have zero dipole moment if the resultant of all dipoles is cancelled due to symmetrical structure.
Question: 4
On electrolysis of dilute sulphuric acid using Platinum (Pt) electrode, which gas is obtained at the anode:
H2SO4 (dilute) on electrolysis using Pt electrodes forms H2 gas at cathode and O2 gas at the anode
Question: 5
The reaction occuring between acetone and methyl magnesium chloride, followed by hydrolysis, will give:
In this case, it will be tertiary butyl alcohol. Here, methyl magnesium bromide is a Grignard reagent. On the other hand, acetone is a ketone.
Question: 6
Paper Chromatography is a type of partition chromatography. In brief, chromatography paper contains water trapped in it, which acts as the stationary phase. The paper selectively retains different components according to their differing partition in two phases.
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