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Question no 1:

 

Q.1 Which one of the following element has highest oxidation state in its compounds ?

A) O
B) Sn
C) Mn
D) Cr

Question no 2:

 

Q.2 Which type of bond is formed by overlap of p orbitals _______________?

A) Neither
B) Both
C) Pi
D) Sigma

Question no 3:

 

Q.3 Which of the following is not an ester_________________?

A) amyl acetate
B) isobutyle formate
C) sodium butyrate
D) octyl acetate

Question no 4:

 

Q.4 The only non metal exists in liquid state is ___________?

A) Mercury
B) Phosphorus
C) Bromine
D) Iodine

Question no 5:

 

Q.5 The element used for the formation of alloys is__________?

A) Mercury
B) Chromium
C) Iron
D) Calcium

Question no 6:

 

Q.6 The source of the Sun’s energy is the process of ____________?

A) Nuclear fusion
B) Nuclear fission
C) Thermionic emission
D) Photoelectric emission

Question no 7:

 

Q.7 The snow on the mountains does NOT melt all at once when it is heated by the sun because:

A) it has a high latent heat of fusion
B) it becomes very hard
C) it reflects most of the heat from the sun
D) it has a low specific heat capacity

Question no 8:

 

Q.8 Pollutants have adverse effect over_________________?

A) Both a & b
B) Hydrosphere
C) Biosphere
D) Ecosystem

Question no 9:

 

Q.9 Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?

A) two / three
B) sixteen / seventeen
C) one / three
D) one / seventeen

Question no 10:

 

Q.10 Spectrum is produced due to________________?

A) all have little contribution
B) Different wavelength
C) Different colours
D) Different intensities

Question no 11:

 

Q.11 Rutherford bombarded _________________ particles in discovery of nucleus?

A) Alpha-rays
B) Beta-rays
C) Gamma-rays
D) X-rays

Question no 12:

 

Q.12 The nutrients which are required in very small amount for the normal growth of plants are called_________________?

A) micronutrients
B) all of the above
C) nitrogenous fertilizers
D) phosphorus fertilizer

Question no 13:

 

Q.13 Electric bulb filament is made of__________?

A)  Lead
B)  Aluminum
C) Copper
D)  Tungsten

Question no 14:

 

Q.14 The structure of H2O2 is_______?

A) Planar
B) Spherical
C) Linear
D) Non- polar

Question no 15:

 

Q.15 Beillstein test is used for________?

A) CO
B) Cl
C) N2
D) CO2

Question no 16:

 

Q.16 Forces of attraction which may be present between all kinds of atoms and molecules are _____________________?

A) intermolecular
B) intramolecular
C) Dipole-induced dipole
D) van der Waal

Question no 17:

 

Q.17 Which of the following set has all species isoelectronic__________________?

A) F – Ne – Na+
B) H+ – H- – H
C) Li+1 – Na+1 – K+1
D) F – Cl – Br

Question no 18:

 

Q.18 When phenol is heated with concentrated nitric acid the product is________________?

A) o-nitrophenol
B) p-nitrophenol
C) 1 3 5 -trinitro benzene
D) Picric acid

Question no 19:

 

Q.19 Which of the following reaction is not shown by ketones ?

A) reaction with Fehling solution
B) reaction with 2 4 dinitrophenyl hydrazine
C) reaction with NaHSO3
D) reaction with HCN

Question no 20:

 

Q.20 The organic acid that can be made from ethanol is_________________?

A) Formic acid
B) Acetic acid
C) Citric acid
D) Butanoic acid

Question no 21:

 

Q.21 Ethanol and methanol can be distinguished by a__________________?

A) Lucas test
B) Tollens test
C) Iodoform test
D) Benedicts test

Question no 22:

 

Q.22 Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is________________?

A) 60%
B) 50%
C) 8%
D) 52%

Question no 23:

 

Q.23 Which has the minimum freezing point ?

A) One molal urea solution
B) One molal CaCI2
C) One molal KCI solution
D) One Molal NaCI

Question no 24:

 

Q.24 The letters s p d and f are used to represent which quantum numbers________________?

A) Principal
B) Spin
C) Magnetic
D) Azimuthal

Question no 25:

 

Q.25 50% inversion of configuration of molecules take place in a___________________?

A) E1 – reaction
B) SN1 – reaction
C) SN2 – reaction
D) E2 – reaction

Question no 26:

 

Q.26 Which of the following is not a fatty acid ?

A) Butanoic acid
B) Phthalic acid
C) Propanoic acid
D) Acetic acid

Question no 27:

 

Q.27 Bond order for N2 molecule is __________________?

A) 3
B) 4
C) 1
D) 2

Question no 28:

 

Q.28 __________ is one of the allotropic modifications of carbon.

A) Silicon
B) Graphite
C) Iodine
D) Diamond

Question no 29:

 

Q.29 Why do we determined the boiling point of a liquid?

A) To Check temperature
B) None of These
C) To check its Purity and nature
D) To check its Acidity and Basicity

Question no 30:

 

Q.30 The by-product of the process of Saponification is___________?

A) Methanol
B) Glycerol
C) Glycol
D) Sodium hydroxide

Question no 31:

 

Q.31 If we provide very high amount of heat to a liquid its boiling point will__________________?

A) increase
B) decrease
C) remains constant
D) there will be no boiling

Question no 32:

 

Q.32 Cassiterite is an ore of_______?

A) Mn
B) Sn
C) Ni
D) Sb

Question no 33:

 

Q.33 Which is used for artificial ripening of fruit ?

A) ethyne
B) ethene
C) methane
D) ethane

Question no 34:

 

Q.34 The IUPAC suffix used for _______ NC group?

A) Carbylamines
B) Isocyanides
C) Cyanide
D) Nitrile

Question no 35:

 

Q.35 The gas used in manufacturing of urea fertilizer__________________?

A) C2H4
B) CH4
C) C2H2
D) C2H6

Question no 36:

 

Q.36 Amylose is__________________?

A) Soluble in water
B) Insoluble in water
C) Soluble in alcohol
D) Partially soluble in alcohol

Question no 37:

 

Q.37 Apparent charge on atom in molecule is___________________?

A) coordination number
B) charge number
C) valency
D) oxidation number

Question no 38:

 

Q.38 The formula of palmitic acid_________________?

A) C17H33COOH
B) C15H31COOH
C) C17H35COOH
D) C13H27COOH

Question no 39:

 

Q.39 The nucleus of an atom of every element will always contain____________________?

A) neutrons
B) protons
C) protons and electrons
D) protons and neutrons

Question no 40:

 

Q.40 Ionization energy in a period generally ___________________?

A) Variable trend
B) Increases
C) Decreases
D) No change

Question no 41:

 

Q.41 The element having electronic configuration [kr] 4d10, 4f14,5s2,5p6,5d1,6s2 belongs to __________?

A) S-Block
B) f-Block
C) d-Block
D) P-Block

Question no 42:

 

Q.42 Which of the following is an unsaturated carboxylic acid___________________?

A) succinic acid
B) malonic acid
C) maleic acid
D) oxalic acid

Question no 43:

 

Q.43 Which is not related pair of term used in analytical techniques________________?

A) Drying desiccator
B) Filtrate residue
C) Separating funnel mother liquor
D) Sublimate sublimation

Question no 44:

 

Q.44 Pumping of water uphill is_______________?

A) non-spontaneous process
B) reversible process
C) spontaneous process
D) irreversible process

Question no 45:

 

Q.45 Rate of reactions of most organic compounds are____________________?

A) slow
B) very fast
C) no regular character present
D) very slow

Question no 46:

 

Q.46 Rate of enzymatic reaction is directly proportional to the concentration of___________________?

A) Substrate
B) Enzyme and product
C) Enzyme and substrate
D) Enzyme

Question no 47:

 

Q.47 Which of the following aqueous solutions would have the highest boiling point?

A) 0.25 m sucrose
B) 0.20 m glucose
C) 0.20 m NaCl
D) 0.15 m CaCl2

Question no 48:

 

Q.48 How many electrons are there in benzene to form delocalized electron cloud________________?

A) 3
B) 4
C) 6
D) 8

Question no 49:

 

Q.49 The solvent or mixture of solvents used for separation of compounds is called____________________?

A) Dynamic phase
B) Stationary phase
C) Mobile phase
D) Static phase

Question no 50:

 

Q.50 Energy released or absorbed when electrons are added in atom is_________________?

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

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