Recent questions and answers in JEEMAIN and NEET

Which of the following statements are correct for a spherical body rolling without slipping on a rough horizontal ground at rest.

answered Apr 2 by drshiltrivedi

1 answer

All of the following compounds are capable of forming hydrogen bonds with water except

answered May 17, 2023 by santrapragya1702

1 answer

Several blocks of magnesium are fixed to the bottom of a ship to :

answered Aug 29, 2021 by connoisseur.2017

1 answer

Given the following statement: Statements: No shoe is a chappal. Some chappals are sandals. Now, consider the claims: C1: Some sandals are not chappals.. C2: Sandals which are not chappals are shoes. Now, mark according to the rules - \[\] i) Mark A if C1 is true, ii) Mark B if C2 is true,iii) Mark C if neither C1 nor C2 is true and iv) Mark D if both C1 and C2 are true.

answered Jun 28, 2021 by mohammadparvez616

1 answer

Three charges $-q_1,\;+q_2$ and $-q_3$ are placed as shown in the figure. The x-component of the force on $-q_1$ is proportional to :

answered Jun 21, 2021 by lipsasahoo941

1 answer

The sentence "____ if and only if $ x + x = 3x$" is TRUE. Which of the following could be used to fill in the blank?

answered Jun 16, 2021 by swatisss278

1 answer

Two points P and Q are maintained at the potentials of 10V and -4V respectively. The work done in moving 100 electrons from P to Q is

answered Jun 6, 2021 by abinashkumarnath6

1 answer

If the electric flux entering and leaving an enclosed surface respectively is $\phi_1$ and $\phi_2$, the electric charge inside the surface will be :

answered Feb 25, 2021 by girishbiradar259

1 answer

If two towers of height $h_1$ and $h_2$ subtend angles $60^{\circ} $ and $30^{\circ}$ respectively at the mid point of the line joining their feet, then $h_1:h_2$ is equal to:

answered Feb 22, 2021 by snehabijusmitha

1 answer

The trans-alkenes are formed by the reduction of alkynes with ?

answered Feb 2, 2021 by abdulrahimshafiuyusuf

1 answer

A mixture contains four solid organic compounds A, B, C, D. On heating only C changes from solid to vapours state. C can be separated from the rest in the mixture by :

answered Nov 9, 2020 by amrutaraghushe007

1 answer

If for some reason our goblet cells are non- functional, this will adversely affect –

answered Sep 24, 2020 by meena.clay6

2 answers

A simple pendulum hanging freely and at rest is vertical because in that position :

answered Sep 19, 2020 by hiteshrajput2201

1 answer

If $\lambda x^2 + 6xy + 9y^2 +4x + 12y+3=0$ represents a pair of straight lines, then $\lambda$ is equal to :

answered Aug 14, 2020 by shadowdragon123345

1 answer

Which one of the following conditions in humans is correctly matched with its chromosomal abnormality / linkage ?

answered Aug 13, 2020 by roopal_bsc19_22

1 answer

Which of the following converts acetone to acetone oxime ?

answered Jul 26, 2020 by akashhkumar5

1 answer

Given the following statement: All doors are windows. Some windows are clips. Now, consider the claims: C1 :Some clips, if they are doors, they are also windows C2: All clips which are not widows are also not doors. Now, mark according to the rules - \[\] i) Mark A if C1 is true, ii) Mark B if C2 is true,iii) Mark C if neither C1 nor C2 is true and iv) Mark D if both C1 and C2 are true.

answered Jul 22, 2020 by praattiikk

1 answer

Which one of the following scientist's name is correctly matched with the theory put forth by him ?

answered Jul 21, 2020 by kphasnashirin

1 answer

HIV that causes AIDS, first starts destroying

answered Jul 21, 2020 by kphasnashirin

1 answer

The solvent used in the preparation of Grignard reagent is :

answered Jul 20, 2020 by kphasnashirin

1 answer

If $a, h, b$ are in A.P., then the triangular area formed by the pair of lines $ax^2 + 2hxy + by^2=0$ and the line $x-y=-2$ (in square units) is :

answered Jul 20, 2020 by sarmagoruganthu

1 answer

A solid organic compound $X$ on heating is directly converted into the vapour phase which on cooling solidifies. The best method for purifying $X$ is :

answered Jul 20, 2020 by yathapusaikumarreddy2003

1 answer

Edible part of turnip is :-

answered Jul 19, 2020 by reyazw322

2 answers

The term "antibiotic" was coined by : -

answered Jul 18, 2020 by kphasnashirin

1 answer

Tobacco mosaic virus is a tubular filament of size : -

answered Jul 18, 2020 by kphasnashirin

1 answer

In Mendel's experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY × rryy ?

answered Jul 18, 2020 by kphasnashirin

1 answer

During in-vitro micropropagation, the favorable condition for shoot multiplication would require which growth regulators ?

answered Jul 17, 2020 by sthitiprangya200

1 answer

Which one of the following statements is correct ?

answered Jul 17, 2020 by kphasnashirin

1 answer

The line $4x +6y+9=0$, touches the parabola $y^2 =4x$ at the point :

answered Jul 6, 2020 by vibhaas93

1 answer

We can avoid the insertion of undersirable gene by

answered Jul 2, 2020 by kphasnashirin

2 answers

In an element (X) shows two oxidation states $+2$ and $+3$ and forms an oxide in such a way the ratio of the element showing $+2$ and $+2$ states is $1:3$ in compound the formulae of

answered Jun 20, 2020 by kshitijthareja03

1 answer

Tinstone is contaminated with Wolframite. Which one of the following methods can be employed to dress the tinstone ore ?

answered Jun 20, 2020 by nalamasuabhinay

1 answer

In a compound microscope cross wires are fixed at the point :

answered Jun 10, 2020 by kelvinayagan

1 answer