Q1.
When NH4Cl is added to NH4OH, its pH:
📅KU 2017
Q2.
The number of molecules of CaCO3 that remains when 1 mole of CaCO3 is allowed to react with 1 mole of HCl are:
📅KU 2017
Q3.
60 gm of compound on analysis produced 24gm carbon, 4 gm hydrogen and 32 gm oxygen. The empirical formula of compound is:
📅KU 2017
Q4.
Ozone which is used to bleach delicate fiber is a mixture of:
📅KU 2017
Q5.
In the reaction KMnO4(aq) + H2SO4(aq) -> MnSO4(aq) + K2SO4(aq) + H2O(l) + O2(g), Mn is:
📅KU 2017
Q6.
Both phenol and ethyl alcohol contain -OH group but phenol is much acidic than ethyl alcohol due to the:
📅KU 2017
Q7.
When ethyl alcohol is heated with excess of concentrated sulphuric acid at about 160-170°C, it produces:
📅KU 2017
Q8.
Calomel is:
📅KU 2017
Q9.
How many moles of CO2 are present in 220 mg?
📅KU 2017
Q10.
Chlorine acts as a bleaching agent in the presence of:
📅KU 2017
Q11.
Nature of bond formed when two elements react depend upon:
📅KU 2017
Q12.
Aqueous solution of SO2 reacts with H2S to precipitate sulphur. Here SO2 acts as:
📅KU 2017
Q13.
The reaction at cathode during the electrolysis of aqueous solution of NaCl is:
📅KU 2017
Q14.
If the rate of reaction becomes twice for every 10°C rise in temperature, by what factor the rate of reaction increases when temperature is increased from 25°C to 75°C?
📅KU 2017
Q15.
Rusting of iron in moist air involves:
📅KU 2017
Q16.
CHCl3 is stored in dark coloured bottles, because:
📅KU 2017
Q17.
Liquor poisoning is due the presence of:
📅KU 2017
Q18.
A sample of water from a well in Terai contains 0.1mg Arsenic per litre. What is the concentration of Arsenic in ppm?
📅KU 2017
Q19.
When two atoms of hydrogen combine to form a molecule of hydrogen gas. The energy of the molecule is:
📅KU 2017
Q20.
Dehydration of ethanol yields:
📅KU 2017
Q21.
The atomic number of Nitrogen is 7 and the atomic number of Oxygen is 8. The total number of electrons in a Nitrate ion (NO3^-) is:
📅KU 2017
Q22.
When C2H5OH is treated with acidic K2Cr2O7, it forms CH3CHO. It is an example of:
📅KU 2017
Q23.
One kilogram of water contains 4gm of NaOH. The concentration of the solution is best expressed as:
📅KU 2017
Q24.
Which of the following has highest boiling point?
📅KU 2017
Q25.
If one mole of methane is converted into products, then which one of the following statement is true?
📅KU 2017
Q26.
Which one of the following complex compound has an incorrect formula?
📅KU 2017
Q27.
Which of the following are isomers?
📅KU 2017
Q28.
A solution of Sodium in liquid Ammonia is blue due to the presence of:
📅KU 2017
Q29.
Which of the following electronic configuration given for some neutral atoms would be expected to have highest second ionization energy (IE2)?
📅KU 2017
Q30.
When temperature of gas is increased its viscosity:
📅KU 2017
Q31.
The maximum wavelengths emitted by the sun at the temperatures (in Kelvin) T1, T2 and T3 are 650 nm, 510 nm and 350 nm respectively. Which one of the following is correct?
📅KU 2017
Q32.
Two ebonite rods A and B of radii 1.5cm and 2cm respectively are rubbed together. The result will be:
📅KU 2017
Q33.
Power of ionization of a gamma particle is:
📅KU 2017
Q34.
Activity of 1.85 * 10^11 disintegration per second is nearly equivalent to:
📅KU 2017
Q35.
The specific gravity of sugar is 1.59. Which one is its correct density in S.I. system?
📅KU 2017
Q36.
If a base ball player can throw a ball to a maximum distance = d over a ground, what is the maximum vertical height to which he can throw it? (Assume that the ball has same initial speed in each case):
📅KU 2017
Q37.
When an elastic material with young's modulus 'Y' is subjected to a stretching stress 'S' the elastic energy stored per unit volume of material is:
📅KU 2017
Q38.
Two drops of water having same radius moving in air downwards with constant velocity v. If the drops coalesced, what will be the new velocity?
📅KU 2017
Q39.
The radius of hydrogen atom in the ground state is 0.53Å. After excitation, it is found that this radius increases to 2.12Å. The value of principle quantum number will be:
📅KU 2017
Q40.
What is the value of -40° Fahrenheit in Celsius scale?
📅KU 2017
Q41.
What is the potential drop across an electric hot plate which draws 5 A when its hot resistance is 24Ω?
📅KU 2017
Q42.
A refrigerator has to transfer an average of 250J of heat per second from -10°C to 25°C. The average power consumed by the refrigerator is:
📅KU 2017
Q43.
A tube closed at one end containing air column excited produces the fundamental note of frequency 512 Hz. If the tube is open at both ends the fundamental frequency that can be excited is:
📅KU 2017
Q44.
The pendulum of clock is made of brass. If the clock keeps correct time at 20°C, how many seconds per day will it lose at 35°C? (alpha_brass = 2 * 10^-5 / °C):
📅KU 2017
Q45.
A body cools down from 65°C to 60°C in 5 minutes. It will cool down 60°C to 55°C in:
📅KU 2017
Q46.
An object is placed at a distance 'u' from simple microscope of focal length 'f'. The angular magnification obtained depends:
📅KU 2017
Q47.
A parallel plate capacitor is charged and the charging battery is then disconnected. If the plates of the capacitor are moved further apart by means of insulating handles:
📅KU 2017
Q48.
A thin stream of water from a tap is attracted by placing a rod near it. The rod is:
📅KU 2017
Q49.
If the current in an electric bulb drops by 2%, the power decreases by:
📅KU 2017
Q50.
Two thin lenses of focal lengths f1 and f2 are in contact. The effective focal length of the combination is:
📅KU 2017
Q51.
When a light wave travels from an optically rarer medium to a denser medium, its speed:
📅KU 2017
Q52.
Critical angle for a pair of media is minimum for which of the following colors of light?
📅KU 2017
Q53.
The phenomenon of interference of light proves that light has:
📅KU 2017
Q54.
In a Young's double slit experiment, if the distance between the slits is halved and the distance to the screen is doubled, the fringe width becomes:
📅KU 2017
Q55.
A charge q is placed at the center of a cube of side L. The total electric flux passing through all six faces of the cube is:
📅KU 2017
Q56.
The electric potential at a distance r from an isolated point charge q varies as:
📅KU 2017
Q57.
The internal resistance of an ideal cell/battery is:
📅KU 2017
Q58.
When a piece of copper and another of germanium are cooled from room temperature to 80 K, the resistance of:
📅KU 2017
Q59.
A magnetic field can be produced by:
📅KU 2017
Q60.
The self-inductance of a solenoid is directly proportional to:
📅KU 2017
Q61.
In an alternating current circuit containing an ideal inductor only, the phase difference between current and voltage is:
📅KU 2017
Q62.
The working of an alternating current generator is based on the principle of:
📅KU 2017
Q63.
Which of the following electromagnetic waves has the shortest wavelength?
📅KU 2017
Q64.
The work function of a metal surface depends upon:
📅KU 2017
Q65.
According to Bohr's theory, the angular momentum of an electron rotating in the nth stable orbit is an integral multiple of:
📅KU 2017
Q66.
During a nuclear fusion reaction:
📅KU 2017
Q67.
The major charge carriers in a p-type semiconductor are:
📅KU 2017
Q68.
The decimal equivalent of binary number (1011)_2 is:
📅KU 2017
Q69.
Universal logic gates are:
📅KU 2017
Q70.
Which one of the following is an echinoderm?
📅KU 2017
Q71.
Syngamy occurs during the formation of:
📅KU 2017
Q72.
During hibernation and aestivation, the respiration in frog is:
📅KU 2017
Q73.
Serum is:
📅KU 2017
Q74.
Carrier of genetic information is:
📅KU 2017
Q75.
Which of the primate is the closest relative of man?
📅KU 2017
Q76.
Dengue Fever is caused by the bite of:
📅KU 2017
Q77.
The total duration of cardiac cycle is:
📅KU 2017
Q78.
Hormone which regulates metamorphosis of tadpole is:
📅KU 2017
Q79.
Octopus belongs to:
📅KU 2017
Q80.
Blastopore in the vertebrates develops into:
📅KU 2017
Q81.
Anadromous fishes move from:
📅KU 2017
Q82.
Organs of corti cells are related with:
📅KU 2017
Q83.
In a flowering plant when pollen grains of flower are transferred to the stigma of another flower on the same plant, it is known as:
📅KU 2017
Q84.
The element that is not very mobile and remains fixed to mitochondria and chloroplast is:
📅KU 2017
Q85.
The nitrifying bacteria convert:
📅KU 2017
Q86.
Which group of plants assimilates maximum CO2 annually by means of photosynthesis?
📅KU 2017
Q87.
Polymerase Chain Reaction (PCR) is used for:
📅KU 2017
Q88.
Every carbohydrate is:
📅KU 2017
Q89.
Totipotency refers to the:
📅KU 2017
Q90.
The process of chain elongation of amino acids during protein synthesis is called:
📅KU 2017
Q91.
The bacteria which grow best as aerobes but can grow without oxygen also are:
📅KU 2017
Q92.
The molecular similarities in the structure of DNA, RNA and comparable proteins help:
📅KU 2017
Q93.
The sporangia of fern develop on:
📅KU 2017
Q94.
Agaricus the edible mushroom belongs to:
📅KU 2017
Q95.
Which of the following is parasitic form of algae?
📅KU 2017
Q96.
The end product of glycolysis in plant is:
📅KU 2017
Q97.
Viruses have:
📅KU 2017
Q98.
Water rises through the xylem mainly by:
📅KU 2017
Q99.
Which of the following is used in industrial preparation of ethanol?
📅KU 2017
Q100.
Lichens represent symbiosis between:
📅KU 2017
Q101.
Viviparous germination can be observed in:
📅KU 2017
Q102.
Which one of the following group of plants is devoid of true nucleus?
📅KU 2017