Which of the following is a scalar quantity:

• A) velocity
• B) mass
• C) acceleration
• D) displacement

To get a real and inverted image of the same size using a convex lens where should an object be placed?

• A) At 2F
• B) At infinity
• C) At F
• D) Between O and F

Flowers have male and female parts called …… and ……….

• A) carpel stamen
• B) pollination carpel
• C) staman pollination
• D) stamen carpel

When a compressed spring is released horizontally against a free-to-move mass, one form of energy changes into another. Which line represents the correct energy conversions:
Kinetic Energy Elastic P.E. Total Energy

• A) increases increases does not change
• B) decreases decreases decreases
• C) increases decreases does not change
• D) does not change increases increases

The most powerful oxidizing agent among the halogen is______.

• A) I2
• B) F2
• C) Br2
• D) Cl2

Work done depends upon (i) force (ii) distance moved (iii) angle between direction of force and displacement. Which line is correct if work done is not zero:
Force angle displacement

• A) greater than zero degrees greater than zero zero
• B) zero zero degrees zero
• C) greater than 90 degrees greater than zero zero
• D) zero 90 degrees zero

The melting point of Caustic soda is _________ degree centigrade

• A) 95
• B) 100
• C) 318
• D) 801

A car with uniform speed can have the acceleration only when the motion of car is in_____ .

• A) Parabolic path
• B) Straight line
• C) Circular path
• D) Irregular path

In mitosis the S phase checkpoint ensures that ________.

• A) Cell is ready for division
• B) Everything is ready to enter the M phase
• C) Synthesis of DNA is correctly done or not
• D) DNA is ready for synthesis

Inverse of focal length is known as the ______ of a lens:

• A) Power of accommodation
• B) Far point
• C) Focus
• D) Power

Elements with seven electronic is their outer most shell form________

• A) Negative ion
• B) Both Positive and Negative ion
• C) remain neutral
• D) Positive ion

The rate of reaction of organic compounds is very slow due to ________.

• A) Ionic bonding
• B) Covalent bonding
• C) Metallic bonding
• D) Coordinate covalent bonding

When a person uses a convex lens as a simple magnifying glass, the object must be placed at a distance:

• A) Less than one focal length
• B) Less than twice the focal length
• C) More than twice the focal length
• D) More than one focal length

The mass number of carbon is C-12, it represents the_____________.

• A) Total number of electrons = 12
• B) Total number of protons and neutrons = 12
• C) Total number of protons and electrons = 12
• D) Total number of protons = 12

Example of Super oxide is________.

• A) H2O2
• B) CO2
• C) H2O
• D) KO2

Work done depends upon (i) force (ii) distance moved in direction of force applied and (iii) angle between direction of force and displacement. Which line is always correct if work done is not zero:

• A) (i) and (ii) are not zero
• B) (i) is not zero
• C) (i) and (iii) are not zero
• D) (ii) and (iii) are not zero

The normal breathing process is controlled by______

• A) Ventral respiratory group
• B) Dorsal respiratory group
• C) Cholesterol
• D) Amino acids

The pH value of a neutral solution is

• A) >7
• B) 8
• C) <7
• D) 7

On heating the amplitude of vibrations of materials ________.

• A) Remain constant
• B) First increases then decreases
• C) Increases
• D) Decreases

The reading on the Fahrenheit scale will be double the reading on the centigrade scale when the temperature on the centigrade scale is?

• A) 280° C
• B) 360° C
• C) 160° C
• D) 460° C