Solved Question Paper of M.Sc.(CHEMISTRY) Entrance test, 2017

By | June 15, 2017

Download Important Questions with Answer M.Sc. (Chemistry) Entrance test, 2017

This paper is held on 08-06-2017. This paper is conduct by Himachal Pradesh University Shimla. This paper is only 100 questions.

Physical Chemistry            – 33 Marks.

Inorganic Chemistry         – 34 Marks

Physical Chemistry          – 33 Marks

Download M.Sc. (Chemistry) Entrance Test, 2017

Ques:- Which one of the following is correct ?

Ans:- Ionization energy is a positive quantity and its value is numerically equal to the excited state energy.

Ques:- Which one of the following establishes the wave character of electron ?

Ans:- Diffraction

Ques:- Which of the following pairs of elements possesses hexagonal close-packed structure ?

Ans:- Ag, Al

Ques:- Which one of the following is not correct ?

Ans:- Hydrides of Group 1V elements become stronger reducing agent down the group.

Ques:- Which one of the following is correct in respect of Group 1V elements ?

  • CH4 is kinetically stable for its reaction with oxygen
  • The +2 oxidation state becomes more stable relative to +4 down the group.
  • SSilane is not kinetically stable in the presence of oxygen

Ans:- All the above

 

Ques:- The order of decreasing power of halogens as oxidising agents is

Ans:- F2 > CL2 > Br2 >I2

Ques:- Milk of magnesia, Mg(OH)2 Is used medicinally as

Ans:- Anti-acid

Ques:- Which of the following is acidic in its properties ?

Ans:- B2O3, B(OH)3, H3PO4

Ques:- Which of the following order corresponding to the given property is not correct ?

Ans:- NH3>PH3>AsH3>SbH3        Reducing character

Ques:- Identify the correct order of solubility in non-polar solvent

Ans:- LiCL>NaCL>KCL

Ques:- The hyberdization in XeF4 AND XeF2 respectively are

Ans:- sp3d2, sp3d

Ques:- The pH at the end point for indicator phenolphthalein is

Ans:- 7

Ques:- Aqueous solution of TiCL3 exposed to white light appears purple or violet because

Ans:-It absorbs photons of red light but transmits those of red and green light.

Ques:- The coordination number of thorium in K4[tH(oxalate].4H2O Is

Ans:- 8

Ques:- Ziegler-Natta catalyst is organometallic compound of metal

Ans:- Titanium.

Ques:- The Ca2+ EDTA complex reaches to its completion at Ph

Ans:- 10

Ques:- Square-planner complexes are not formed by the metal ion

Ans:- Zn2+

Ques:- How many coloured isomers have been isolated with CrCL3 (H2O)6 ?

Ans:- 3

Ques:- Which of the following is identified as molecular (covalent) halide ?

Ans:- PbCL4

Ques:- Parahydrogen differs from normal hydrogen in physical property

Ans:- Vapour pressure, Boiling point, Specific heat

Ques:- The first organometallic compound often referred as Zeise’s salt is

Ans:- K[Pt(C2H4)CL3}H2O

Ques:- Ionic character of the metal-carbon bond decreases in the order

Ans:- (CH3)2Hg > (CH3)2Cd > (CH3)2Zn > (CH3)2Mg

Ques:- By referring to the concepts of hard and soft acids and bases, which of the following is not correct ?

Ans:- Hard acids have higher radius-to-charge ratios.

Ques:- Which of the following can be classified as pscudohalogen ?

Ans:- CN, N3, ONC

Ques:- Calcium found in bones and teeth in the form of inorganic salt held in a framework of proteins is.

Ans:- Fluorapatite, Chlorapatite, Dahillite

Ques:- Silicones are

Ans:- Compounds obtained by hydrolysis of organochloro silancs

Ques:- Magnetic moment of Co3+ in octahcdral complex with weak field ligands is

Ans:- 4.9 BM

Ques:- SO2 (I) can be used as non-aqucous solvent to solubilise

Ans:- Both organic and inorganic covalent compounds

Ques:- Which of the following is pesticide ?

Ans:- Benzene hexachloride, Aldrin, Chloropicrin

Ques:- Which one of the following is strongest base ?

Ans:- CH3CH2CH2NH2

Ques:- Which one of the following is not isomeric with diethylether ?

Ans:- Butanon

Ques:- Which of the hybridized carbon atoms are present in 1,2-butadiene ?

Ans:- sp,sp2 and sp3

Ques:- Number of isomers of c6h14 are

Ans:- 5

Ques:- Correct order of the stability of alkenes is

Ans:- 2,3-Dimethyl-2-butene>2-methy-2-pentene>2-hexene

Ques:- Acetylene add on the halogen acids in their order of reactivity

Ans:- HI>HBr>HCL>HF

Ques:- What is not correct with respect to Friedel-Crafts reaction ?

Ans:- For a given alkyl group, the order is : RF < RCI < RBr <Rl.

Ques:- Which of the methods is used with pertinent chemicals for synthesis of alcohols from alkenes ?

Ans:- Hydration, Hydroboration, Oxymercuration-demercuration

Ques:- Which of the following would not give a positive iodoform test ?

Ans:- 2-butanol

Ques:- Which of the following is also known as oil of bitter almonds ?

Ans:- Benzaldehyde

Ques:- The introduction of diazonium group to aromatic ring means rendering aromatic ring susceptible to

Ans:- Electrophilic substitution

Ques:- Which of the following is not correct ?

Ans:- All chiral objects need not be asymmetric.

Ques:- Put the following in their order of increasing reactivity towards nitration

Ans:- Pyridine < Quinoline-N-oxide <Quinoline

Ques:- Which test is used for the detection of reducing sugar ?

Ans:- Benedict’s test

Ques:- Which of the following is not correct ?

Ans:- Electrophilic substitution of pyridine is similar to nitrobenzene

Ques:- The number of isometic ethers of C5H12O are

Ans:- 6

Ques:- What is the hybridization state of an allene system ?

Ans:- sp2, sp

Ques:- Which of the following CH3 protons come to resonance at lowest  value ?

Ans:- CH3I

Ques:- 1,2-dibromocyclopropane has stereoisomers

Ans:- 3

Ques:- Number of signals the H-NMR spectrum produces for ethanol (CH3CHO) molecule are

Ans:- 2

Ques:- At what temperature (in degree) will be the root mean square velocity of hydrogen be double of its value at NTP ?

Ans:- 819 degree centigrade

Ques:- Which of the following is most widely used supercritical fluids ?

Ans:- CO2

Ques:- Which of the following is not correct with respect to liquid crystals ?

Ans:- They commonly consist of aromatic rings, and multiple bonds between carbon and nitrogen or oxygen.

Ques:- Which of the following electrolytes bring about the coagulation of As2S3 sol in the least concentration ?

Ans:- AIPO4

Ques:- Which of the following is emulsifying agent ?

Ans:- Glycerine

Ques:- In a 2nd order reaction initial concentration of the reactant is increased by two times, the half-life period will

Ans:- Decrease by four times.

Ques:- Which of the following is not extensive property ?

Ans:- Chemical potential.

Ques:- The internal energy of an ideal gas depends on

Ans:- Temperature, Pressure, Volume

Ques:- At temperature of inversion, Joul-Thomson effect is

Ans:- 0

Ques:- An ideal heat engine operates between 250 K and 500 K.The efficiency of the engine in

Ans:- 50%

Ques:- Which of the following is the characteristic of adiabatic process ?

Ans:- Q  =0

Ques:- One ampere of current is passed for 5 minutes through a solution of AgNO3, The amount of Ag produced is

Ans:- 0.3 g

Ques:- To prepare 50 g of 10% aqueous solution of NaCL the amount of NaCL required is

Ans:- 5 g

Ques:- Solutions having same osmotic pressure are called

Ans:- Isotonic

Ques:- Which of the following is not correct ?

Ans:- Energy of the photoelectron is independent of the frequency of the incident light

Ques:- Which of the following diatomic molecules will not show pure rotational spectrum ?

Ans:- N2

Ques:- Non-radiative transitions between the states of same spin angular momentum are called

Ans:- Intersystem crossing

Ques:- Which of the following is not correct with respect of micelle formation of ionic surfactant in aqueous solution ?

Ans:- It takes place below the Kraft temperature.

Ques:- Normality of 30 volume h2o2 is

Ans:- 5.4

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