Q1.
When NH4Cl is added to NH4OH, its pH:
📅KU 2013
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 2013
Q3.
60 gm of compound on analysis produced 24gm carbon, 4 gm hydrogen and 32 gm oxygen. The empirical formula of compound is:
📅KU 2013
Q4.
Ozone which is used to bleach delicate fiber is a mixture of:
📅KU 2013
Q5.
In the reaction KMnO4(aq) + H2SO4(aq) -> MnSO4(aq) + K2SO4(aq) + H2O(l) + O2(g), Mn is:
📅KU 2013
Q6.
Both phenol and ethyl alcohol contain -OH group but phenol is much acidic than ethyl alcohol due to the:
📅KU 2013
Q7.
When ethyl alcohol is heated with excess of concentrated sulphuric acid at about 160-170°C, it produces:
📅KU 2013
Q8.
Calomel is:
📅KU 2013
Q9.
How many moles of CO2 are present in 220 mg?
📅KU 2013
Q10.
Chlorine acts as a bleaching agent in the presence of:
📅KU 2013
Q11.
Nature of bond formed when two elements react depend upon:
📅KU 2013
Q12.
Aqueous solution of SO2 reacts with H2S to precipitate sulphur. Here SO2 acts as:
📅KU 2013
Q13.
The reaction at cathode during the electrolysis of aqueous solution of NaCl is:
📅KU 2013
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 2013
Q15.
Rusting of iron in moist air involves:
📅KU 2013
Q16.
CHCl3 is stored in dark coloured bottles, because:
📅KU 2013
Q17.
Liquor poisoning is due the presence of:
📅KU 2013
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 2013
Q19.
When two atoms of hydrogen combine to form a molecule of hydrogen gas. The energy of the molecule is:
📅KU 2013
Q20.
Dehydration of ethanol yields:
📅KU 2013
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 2013
Q22.
When C2H5OH is treated with acidic K2Cr2O7, it forms CH3CHO. It is an example of:
📅KU 2013
Q23.
One kilogram of water contains 4gm of NaOH. The concentration of the solution is best expressed as:
📅KU 2013
Q24.
Which of the following has highest boiling point?
📅KU 2013
Q25.
If one mole of methane is converted into products, then which one of the following statement is true?
📅KU 2013
Q26.
Which one of the following complex compound has an incorrect formula?
📅KU 2013
Q27.
Which of the following are isomers?
📅KU 2013
Q28.
A solution of Sodium in liquid Ammonia is blue due to the presence of:
📅KU 2013
Q29.
Which of the following electronic configuration given for some neutral atoms would be expected to have highest second ionization energy (IE2)?
📅KU 2013
Q30.
When temperature of gas is increased its viscosity:
📅KU 2013
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 2013
Q32.
Two ebonite rods A and B of radii 1.5cm and 2cm respectively are rubbed together. The result will be:
📅KU 2013
Q33.
Power of ionization of a gamma particle is:
📅KU 2013
Q34.
Activity of 1.85 * 10^11 disintegration per second is nearly equivalent to:
📅KU 2013
Q35.
The specific gravity of sugar is 1.59. Which one is its correct density in S.I. system?
📅KU 2013
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 2013
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 2013
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 2013
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 2013
Q40.
What is the value of -40° Fahrenheit in Celsius scale?
📅KU 2013
Q41.
What is the potential drop across an electric hot plate which draws 5 A when its hot resistance is 24Ω?
📅KU 2013
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 2013
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 2013
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 2013
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 2013
Q46.
An object is placed at a distance 'u' from simple microscope of focal length 'f'. The angular magnification obtained depends:
📅KU 2013
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 2013
Q48.
A thin stream of water from a tap is attracted by placing a rod near it. The rod is:
📅KU 2013
Q49.
If the current in an electric bulb drops by 2%, the power decreases by:
📅KU 2013
Q50.
Two thin lenses of focal lengths f1 and f2 are in contact. The effective focal length of the combination is:
📅KU 2013
Q51.
When a light wave travels from an optically rarer medium to a denser medium, its speed:
📅KU 2013
Q52.
Critical angle for a pair of media is minimum for which of the following colors of light?
📅KU 2013
Q53.
The phenomenon of interference of light proves that light has:
📅KU 2013
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 2013
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 2013
Q56.
The electric potential at a distance r from an isolated point charge q varies as:
📅KU 2013
Q57.
The internal resistance of an ideal cell/battery is:
📅KU 2013
Q58.
When a piece of copper and another of germanium are cooled from room temperature to 80 K, the resistance of:
📅KU 2013
Q59.
A magnetic field can be produced by:
📅KU 2013
Q60.
The self-inductance of a solenoid is directly proportional to:
📅KU 2013
Q61.
In an alternating current circuit containing an ideal inductor only, the phase difference between current and voltage is:
📅KU 2013
Q62.
The working of an alternating current generator is based on the principle of:
📅KU 2013
Q63.
Which of the following electromagnetic waves has the shortest wavelength?
📅KU 2013
Q64.
The work function of a metal surface depends upon:
📅KU 2013
Q65.
According to Bohr's theory, the angular momentum of an electron rotating in the nth stable orbit is an integral multiple of:
📅KU 2013
Q66.
During a nuclear fusion reaction:
📅KU 2013
Q67.
The major charge carriers in a p-type semiconductor are:
📅KU 2013
Q68.
The decimal equivalent of binary number (1011)_2 is:
📅KU 2013
Q69.
Universal logic gates are:
📅KU 2013
Q70.
Which one of the following is an echinoderm?
📅KU 2013
Q71.
Syngamy occurs during the formation of:
📅KU 2013
Q72.
During hibernation and aestivation, the respiration in frog is:
📅KU 2013
Q73.
Serum is:
📅KU 2013
Q74.
Carrier of genetic information is:
📅KU 2013
Q75.
Which of the primate is the closest relative of man?
📅KU 2013
Q76.
Dengue Fever is caused by the bite of:
📅KU 2013
Q77.
The total duration of cardiac cycle is:
📅KU 2013
Q78.
Hormone which regulates metamorphosis of tadpole is:
📅KU 2013
Q79.
Octopus belongs to:
📅KU 2013
Q80.
Blastopore in the vertebrates develops into:
📅KU 2013
Q81.
Anadromous fishes move from:
📅KU 2013
Q82.
Organs of corti cells are related with:
📅KU 2013
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 2013
Q84.
The element that is not very mobile and remains fixed to mitochondria and chloroplast is:
📅KU 2013
Q85.
The nitrifying bacteria convert:
📅KU 2013
Q86.
Which group of plants assimilates maximum CO2 annually by means of photosynthesis?
📅KU 2013
Q87.
Polymerase Chain Reaction (PCR) is used for:
📅KU 2013
Q88.
Every carbohydrate is:
📅KU 2013
Q89.
Totipotency refers to the:
📅KU 2013
Q90.
The process of chain elongation of amino acids during protein synthesis is called:
📅KU 2013
Q91.
The bacteria which grow best as aerobes but can grow without oxygen also are:
📅KU 2013
Q92.
The molecular similarities in the structure of DNA, RNA and comparable proteins help:
📅KU 2013
Q93.
The sporangia of fern develop on:
📅KU 2013
Q94.
Agaricus the edible mushroom belongs to:
📅KU 2013
Q95.
Which of the following is parasitic form of algae?
📅KU 2013
Q96.
The end product of glycolysis in plant is:
📅KU 2013
Q97.
Viruses have:
📅KU 2013
Q98.
Water rises through the xylem mainly by:
📅KU 2013
Q99.
Which of the following is used in industrial preparation of ethanol?
📅KU 2013
Q100.
Lichens represent symbiosis between:
📅KU 2013
Q101.
Viviparous germination can be observed in:
📅KU 2013
Q102.
Which one of the following group of plants is devoid of true nucleus?
📅KU 2013
Q103.
Unit of universal gas constant is:
📅KU 2013
Q104.
The compound which gives a positive iodoform test is:
📅KU 2013
Q105.
Chlorination of methane in presence of sunlight is an example of:
📅KU 2013
Q106.
The standard oxidation potential of Zn, Cu, Ag and H2 are 0.76 V, -0.34 V, -0.80 V and 0.0 V respectively. Which of the following is strongest reducing agent?
📅KU 2013
Q107.
The number of isomers possible for a compound with molecular formula C4H10 is:
📅KU 2013
Q108.
Which of the following elements has highest electron affinity?
📅KU 2013
Q109.
Glycerol is a:
📅KU 2013
Q110.
The maximum number of electrons that can be accommodated in a principal energy level 'n' is:
📅KU 2013
Q111.
Cinnabar is an ore of:
📅KU 2013
Q112.
The process of separating cream from milk is based on:
📅KU 2013
Q113.
The half-life period of a first-order reaction is independent of:
📅KU 2013
Q114.
When cross-sectional area of a metallic wire is halved, its specific resistance (resistivity):
📅KU 2013
Q115.
A body falls freely from a height 'h' above the ground. After falling a distance h/2, its energy is:
📅KU 2013
Q116.
The speed of sound in a gas is directly proportional to:
📅KU 2013
Q117.
The unit of power of a lens is:
📅KU 2013
Q118.
When a glass rod is rubbed with silk cloth, the glass rod:
📅KU 2013
Q119.
The magnetic field lines inside a current-carrying long straight solenoid are:
📅KU 2013
Q120.
The phenomenon of total internal reflection occurs when light travels from:
📅KU 2013
Q121.
The escape velocity of a body from the surface of the earth depends upon:
📅KU 2013
Q122.
The working of a hydraulic lift is based on:
📅KU 2013
Q123.
Which of the following has the highest specific heat capacity?
📅KU 2013
Q124.
The resistance of an ideal ammeter should be:
📅KU 2013
Q125.
The fundamental particle responsible for carrying a positive charge in an atom is:
📅KU 2013
Q126.
Which of the following behaves as both an oxidizing and a reducing agent?
📅KU 2013
Q127.
The gas responsible for global warming is:
📅KU 2013
Q128.
Permanent hardness of water can be removed by adding:
📅KU 2013
Q129.
The formula of rust is:
📅KU 2013
Q130.
The functional group present in aldehydes is:
📅KU 2013
Q131.
An element has an electronic configuration of 2, 8, 7. Its valency is:
📅KU 2013
Q132.
The pH of a neutral solution at 25°C is:
📅KU 2013
Q133.
Which of the following is an example of a physical change?
📅KU 2013
Q134.
The lens used to correct myopia (short-sightedness) is:
📅KU 2013
Q135.
The kinetic energy of a body of mass 'm' moving with velocity 'v' is:
📅KU 2013
Q136.
The working of a rocket is based on the principle of conservation of:
📅KU 2013
Q137.
The working of an optical fiber is based on:
📅KU 2013
Q138.
Which of the following mirrors is used by dentists to see a magnified image of teeth?
📅KU 2013
Q139.
The value of acceleration due to gravity 'g' is maximum at:
📅KU 2013
Q140.
Which of the following transitions in a hydrogen atom emits a photon of highest frequency?
📅KU 2013
Q141.
The resistance of a semiconductor decreases with:
📅KU 2013
Q142.
The mass number of an atom is equal to the total number of:
📅KU 2013
Q143.
The catalyst used in Haber's process for the manufacture of ammonia is:
📅KU 2013
Q144.
Which of the following organic compounds is used as an artificial ripening agent for green fruits?
📅KU 2013
Q145.
The type of hybridization present in a carbon atom of an alkene is:
📅KU 2013
Q146.
An aqueous solution of copper sulfate turn blue litmus paper:
📅KU 2013
Q147.
The structural formula of functional isomer of ethanol is:
📅KU 2013
Q148.
When a fast moving neutron strikes a Uranium-235 nucleus, it undergoes:
📅KU 2013
Q149.
The non-metal which conducts electricity is:
📅KU 2013