The major role of liver in digestive system is ________.

• A) Producing bile secretion
• B) Making special enzymes
• C) Neutralizing the stomach acid
• D) Regulating the insulin

______ is called the “Powerhouse” of the cell

• A) Nucleus
• B) Lysosomes
• C) Golgi bodies
• D) Mitochondria

The cell in which electrical energy is converted into chemical energy is called

• A) Daniel
• B) Electrolytic cell
• C) fuel cell
• D) Galvanic cell

Brine is the aqueous solution of______.

• A) Sodium Bromide NaBr
• B) Sodium Iodide NaI
• C) Sodium Chloride NaCl
• D) Sodium Fluoride NaF

The bond length in C-O is 0.143 whereas in C=O the bond length ________.

• A) Remain same
• B) Decreases
• C) Increases
• D) Depends on shape of d orbital

An engineer designs different machines. Which is the least efficient?
Input Energy Useful Output Wastage

• A) 450 J 248 J 202 J
• B) 731 J 468 J 263 J
• C) 255 J 153 J 102 J
• D) 510 J 357 J 153 J

For internal energy, which is/are true?
i. It is sum of all forms of energies associated with molecules of a system
ii. t is a state function of a system
iii. It is proportional to transnational K.E of the molecules

• A) (i) only
• B) (ii) & (iii) only
• C) (i) & (iii) only
• D) (i), (ii) & (iii)

Concave mirror formed an inverted image if distance between mirror and object is _______.

• A) More than its focal length
• B) Exactly at its focal length
• C) Less than its focal length
• D) None of above

the SI unit of Temperature is:

• A) Fahrenheit
• B) Kelvin
• C) Centigrade
• D) Celsius

At the end of meiosis each cell divided into ________.

• A) 4n Haploid
• B) 4 Haploid
• C) 2n Haploid
• D) 2 Haploid

A physical quantity that requires a number, a unit and direction to be described fully is known as a

• A) fundamental quantity
• B) vector
• C) derived quantity
• D) scalar

the acceleration of a moving body is always in the direction of the:

• A) applied force
• B) reactive force
• C) resistive force
• D) velocity

Which of the following statement/s is/are correct:

• A) Optical fibers bend the light beam using the principle of total internal reflection
• B) Optical fibers cannot bend the light
• C) Optical fibers can bend light using the principle of Laws of refraction
• D) Optical fibers can bend light using the principle of Laws of reflection

When two equal and opposite vectors are subtracted from one another the resultant is

• A) Zero
• B) half of the original vector
• C) the original vector
• D) twice the original vector

The boiling point of chlorine is:

• A) -24.8 C
• B) -46.7 C
• C) -34.6 C
• D) -12.4 C

Which of the following is not a derived quantity:

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

Valencies of Nobel gasses in general are________

• A) Three
• B) zero
• C) two
• D) one

For a force F acting at an angle ? above the horizontal the components along the x and the y axis are equal. The angle ? in degrees between the Force and the horizontal is:

• A) 60
• B) 0
• C) 45
• D) 30

The amount of energy released or absorbed when elections are added in a atom is known as__________.

• A) Electronegativity
• B) Electron affinity
• C) Activation energy
• D) Ionization energy

Triple covalent bond present in________ molecule

• A) Oxyjen
• B) Nitrogen
• C) Hydrogen
• D) Chlorine