## 1. The increase in pressure required to decrease the 200 L volume of a liquid by 0.004% (in kPa) is (Bulk modulus of the liquid ==2100 MPa)

Maharashtra CET 2006 Mechanical Properties Of Solids

## 2. To draw maximum current from a combination of cells, how should the cells be grouped?

AFMC 2006 Current Electricity

AFMC 2010 Atoms

NEET 2019 Waves

## 5. The period of revolution of planet A around the sun is 8 times that of B. The distance of A from the sun is how many times greater than that of B from the sun?

AIPMT 1997 Gravitation

## 6. Two discs of same moment of inertia rotating about their regular axis passing through centre and perpendicular to the plane of disc with angular velocities $\omega_1$ and $\omega_2$ . They are brought into contact face to face coinciding the axis of rotation. The expression for loss of energy during this process is:-

NEET 2017 System Of Particles And Rotational Motion

## 7. The temperature of 100 g of water is to be raised from 24°C to 90°C by adding steam to it. The mass of the steam required for this purpose is

JIPMER 2015 Thermal Properties Of Matter

## 8. The hot wire ammeter measures

Rajasthan PMT 2004 Alternating Current

## 9. The diameter of a flywheel is increased by 1%. Increase in its moment of inertia about the central axis is

JIPMER 2015 System Of Particles And Rotational Motion

## 10. A body of mass 4 kg is accelerated upon by a constant force, travels a distance of 5 m in the first second and a distance of 2 m in the third second. The force acting on the body is

KCET 2008 Laws Of Motion

## 1. An acidic buffer solution can be prepared by mixing the solution of

IIT JEE 1981 Equilibrium

## 2. A mixture of benzaldehyde and formaldehyde on heating with aqueous NaOH solution gives

IIT JEE 2001 Aldehydes Ketones and Carboxylic Acids

## 3. Which of the following solutions will have pH close to 1.0 ?

IIT JEE 1992 Equilibrium

## 4. Acetone is mixed with bleaching powder to give

AFMC 2004 Aldehydes Ketones and Carboxylic Acids

## 5. 75% of a first order reaction was completed in 32 minutes. When was 50% of the reaction completed

COMEDK 2010 Chemical Kinetics

## 7. The radii of $Na^+$ and $Cl^{-1}$ ions are 95 pm and 181 pm respectively. The edge length of NaCl unit cell is

KCET 2006 The Solid State

## 8. Acidic hydrogen is present in

IIT JEE 1985 Hydrocarbons

## 9. X is heated with soda lime and gives ethane. X is

AFMC 2005 Aldehydes Ketones and Carboxylic Acids

## 10. The oxidation state of Cr in CrO6 is :

NEET 2019 Redox Reactions

AIEEE 2002 Sets

## 2. For $r = 0, 1, ... , 10,$ if $A_r,B_r$ and $C_r$ denote respectively the coefficient of $x^r$ in the expansions of $(1 + x)^{10}, (1 + x)^{20}$ and $(1 + x)^{30}$. Then, $\displaystyle \sum A_r(B_{10}B_r-C_{10}A_r)$ is equal to

IIT JEE 2010 Binomial Theorem

## 3. Let $\omega \ne 1$ be a cube root of unity and S be the set of all non-singular matrices of the form $\begin {bmatrix} 1 & a & b \\ \omega & 1 & c \\ \omega^2 & \omega & 1 \end {bmatrix}$ where each of a , b and c is either $\omega \ or \ omega^2$ Then, the number of distinct matrices in the set S is

IIT JEE 2011 Determinants

## 4. Perpendicular are drawn from points on the line $\frac{x+2}{2}=\frac{y+1}{-1}= \frac{z}{3}$ to the plane $x+ y + z = 3$. The feet of perpendiculars lie on the line

JEE Advanced 2013 Introduction to Three Dimensional Geometry

## 5. The centre of the circle passing through the point (0, 1)and touching the curve $y = x^2 at (2,4)$ is

IIT JEE 1983 Conic Sections

## 6. A ray of light along $x+\sqrt 3 \, y=\sqrt 3$ gets reflected upon reaching X-axis, the equation of the reflected ray is

JEE Main 2013 Straight Lines

## 7. A ray of light along $x+\sqrt 3 \, y=\sqrt 3$ gets reflected upon reaching X-axis, the equation of the reflected ray is

JEE Main 2013 Straight Lines

## 8. A ray of light along $x+\sqrt 3 \, y=\sqrt 3$ gets reflected upon reaching X-axis, the equation of the reflected ray is

JEE Main 2013 Straight Lines

## 9. Let AB be a chord of the circle $x^2 + y^2 = r^2$ subtending a right angle at the centre. Then, the locus of the centroid of the $\Delta PAB$ as P moves on the circle, is

IIT JEE 2001 Conic Sections

## 1. Fluoride pollution mainly affects

AIPMT 2003 Environmental Issues

## 2. The edible part of the fruit of apple is

J & K CET 2012 Morphology of Flowering Plants

## 3. The edible part of the fruit of apple is

J & K CET 2012 Morphology of Flowering Plants

## 4. The edible part of the fruit of apple is

J & K CET 2012 Morphology of Flowering Plants

## 5. The edible part of the fruit of apple is

J & K CET 2012 Morphology of Flowering Plants

## 6. Venous heart is found in

Odisha JEE 2012 Animal Kingdom

## 7. Edible part of banana

AIPMT 2001 Morphology of Flowering Plants

## 8. The endosperm of gymnosperm is

AIPMT 1999 Sexual Reproduction in Flowering Plants

## 9. The largest herbarium in India is located in

Odisha JEE 2009 Diversity In The Living World

## 10. Which one holds corona radiata ?

Maharashtra CET 2007 Human Reproduction