Total Number of Question/s - 4730

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  • 1. The Solid State - Quiz


    SAMPLE QUESTIONS


    1. In the structure of diamond, carbon atoms appear at
    a) 0,0,0 and $\frac{1}{2}, \frac{1}{2}, \frac{1}{2}$
    b) $\frac{1}{4}, \frac{1}{4}, \frac{1}{4}$ and $\frac{1}{2}, \frac{1}{2}, \frac{1}{2}$
    c) 0,0,0 and $\frac{1}{4}, \frac{1}{4}, \frac{1}{4}$
    d) 0,0,0 and $\frac{3}{4}, \frac{3}{4}, \frac{3}{4}$

    2. Schottky defect to crystals is observed when
    a) Unequal number of cations and anions are missing from the lattice
    b) Equal number of cations and anions are missing from the lattice
    c) An ion leaves its normal site and occupies an interstitial site
    d) Density of the crystal is increased

  • 2. Solutions - Quiz


    SAMPLE QUESTIONS


    1. The osmotic pressure of blood is 7.40 atm at 270C. The number of mol of glucose to be used per litre for an intravenous inhjection that is to have the same osmotic pressure as blood is
    a) 0.3
    b) 0.2
    c) 0.1
    d) 0.4

    2. Which one of the following salts will have the same value of vant Hoff factor (i) as that of K4[Fe(CN)6]?
    a) Al2(SO4)3
    b) NaCl
    c) Al(NO3)3
    d) Na2SO4

  • 3. Electrochemistry - Quiz


    SAMPLE QUESTIONS


    1. For an electrolyte solution of 0.05 mol L-1 , the conductivity has been found to be 0.0110S cm-1. The molar conductivity is
    a) 0.055 S cm2 mol-1
    b) 550 S cm-1
    c) 0.22 S cm2 mol-1
    d) 220 S cm2 mol-1

    2. The highest electrical conductivity of the following aqueous solutions is of
    a) 0.1 M acetic acid
    b) 0.1 M chloro acetic acid
    c) 0.1 M fluoro acetic acid
    d) 0.1 M difluoro acetic acid

  • 4. Chemical Kinetics - Quiz


    SAMPLE QUESTIONS


    1. Burning of coal is represented as C(s) + O2(g) → CO2(g)
    The rate of this reaction is increased by
    a) Decrease in the concentration of oxygen
    b) Powdering the lumps of coal
    c) Decreasing the temperature of coal
    d) Providing inert atmosphere

    2. For a zero order reaction, the plot of concentration, vs time is linear with
    a) +ve slope and zero intercept
    b) -ve slope and zero intercept
    c) +ve slope and non-zero intercept
    d) -ve slope and non-zero intercept

  • 5. Surface Chemistry - Quiz


    SAMPLE QUESTIONS


    1. The process of passing of a precipitate into colloidal solution on adding an electrolyte is called
    a) Dialysis
    b) Peptization
    c) Electrophoresis
    d) Electro-osmosis

    2. Which of the following statements is incorrect regarding physisorption?
    a) It occurs because of van der waals forces
    b) Liquefiable gases are adsorbed more easily
    c) Under high pressure it results surface
    d) Enthalpy of adsorption (ΔHadsorption) is low and positive

  • 6. General Principles and Processes of Isolation of Elements - Quiz


    SAMPLE QUESTIONS


    1. Rutile is an ore of
    a) Ti
    b) Mn
    c) Ca
    d) Mg

    2. Which of the following reactions taking place in the blast furnace during extraction of iron is endothermic?
    a) CaCO3 $\rightarrow$ CaO + CO2
    b) 2C + O2 $\rightarrow$ 2CO
    c) C + O2 $\rightarrow$ CO2
    d) Fe2O3 + 3CO $\rightarrow$ 2Fe + 3CO2

  • 7. The p-Block Elements - Quiz


    SAMPLE QUESTIONS


  • 8. The d-and f-Block Elements - Quiz


    SAMPLE QUESTIONS


    1. When zinc reacts with very dilete nitric acid it produces
    a) NO
    b) NH4NO3
    c) NO2
    d) H2

    2. In vapour state Cu(NO3)2 and Cu2(CH3COO)4.2H2O exist as
    a) Dimer, monomer
    b) Monomer, dimer
    c) Monomer, monomer
    d) Dimer, Dimer

  • 9. Coordination Compounds - Quiz


    SAMPLE QUESTIONS


    1. The closed ring compounds formed by bisdentate ligands, on binding to a metal or metal ions are called:
    a) Monodentate ligand
    b) Chelates
    c) Ambidentate
    d) None of these

    2. Coordination number Cu2+ in CuSO4.5H2O is
    a) 5
    b) 4
    c) 3
    d) 2

  • 10. Haloalkanes and Haloarenes - Quiz


    SAMPLE QUESTIONS


  • 11. Alcohols, Phenols and Ethers - Quiz


    SAMPLE QUESTIONS


    1. In the following compounds,

    the order of acidity is:
    a) III > IV > I > II
    b) I > IV > III > II
    c) II > I > III > IV
    d) IV > III > I > II

    2. The presence of peroxides in old samples of ether is detected by shaking them with a freshly prepared solution of Fe2+ (FeSO4) followed by the addition of KCNS. The appearance of ……..colour indicates the presence of peroxides.
    a) Blue
    b) Green
    c) Red
    d) Brown

  • 12. Aldehydes, Ketones and Carboxylic Acids - Quiz


    SAMPLE QUESTIONS


    1. The compound formed when malonic acid is heated with urea , is
    a) cinnamic acid
    b) butyric acid
    c) barbituric acid
    d) crotonic acid

    2. Consider the following transformations
    $CH_{3}COOH \overset{CaCO_{3}}{\rightarrow} A \overset{heat}{\rightarrow} B \xrightarrow[NAOH]{I_{2}}$
    The molecular formula of C is
    a)
    b)
    c) CHI3
    d) CH3I

  • 13. Amines - Quiz


    SAMPLE QUESTIONS


  • 14. Biomolecules - Quiz


    SAMPLE QUESTIONS


    1. Cellulose is a straight-chain polysaccharide composed of only:
    a) D-Glucose units joined by α-glycosidic linkage.
    b) D-Glucose units joined by β-glycoisdic linkage.
    c) D-Galactose units joined by α-glycosidic linkage.
    d) D-Galactose units joined by β-glycosidic linkage.

    2. The correct statement in respect of protein haemoglobin is that it
    a) functions as a catalyst for biological reactions.
    b) maintains blood sugar level.
    c) acts as an oxygen carrier in the blood.
    d) forms antibodies and offers resistance to diseases.

  • 15. Polymers - Quiz


    SAMPLE QUESTIONS


  • 16. Chemistry in Everyday Life - Quiz


    SAMPLE QUESTIONS


  • 17. Nuclear Chemistry - Quiz


    SAMPLE QUESTIONS


    1. Radioactive disintegration differs from a chemical change in being
    a) An exothermic change
    b) A spontaneous process
    c) A nuclear process
    d) A unimolecular first-order reaction

    2. One curie of activity is equivalent to
    a) 3.7 x 107 disintegrations per second
    b) 3.7 x 1010 disintegrations per second
    c) 3.7 x 104 disintegrations per second
    d) None

  • 18. p-Block Group 16 Elements (Oxygen Family) - Quiz


    SAMPLE QUESTIONS


    1. About H2SO4, which of the following statements is incorrect?
    a) It acts as a reducing agent
    b) It acts as an oxidising agent
    c) It acts as dehydrating agent
    d) It is highly viscous

    2. When SO2 is passed through a solution of H2S in water:
    a) Sulphuric acid is formed
    b) A clear solution is formed
    c) Sulphur is precipitated
    d) No change is observed

  • 19. p-Block Group 17 Element (Halogen Family) - Quiz


    SAMPLE QUESTIONS


    1. The oxidising ability of perhal;ates are in the order:
    a) ClO4 > BrO4 > IO4
    b) ClO4 < BrO4 < IO4
    c) BrO4 > IO4 > ClO4
    d) IO4 < BrO4 < ClO4

    2. IE of halogens are
    a) F > Cl > Br > I
    b) Cl > F > Br > I
    c) Cl > Br > I > F
    d) Cl > Br > F > I

  • 20. p-Block Group 18 Element (Inert Gases) - Quiz


    SAMPLE QUESTIONS


    1. Helium is used in gas balloons instead of hydrogen because
    a) it is higher than H2
    b) it is non-combustible
    c) it is more abundant than H2
    d) its linkage can be detected easily

    2. Which of the following cannot be formed?
    a) He2+
    b) He
    c) He
    d) He2

  • 21. Grignard Reagents & Organometallic Compounds - Quiz


    SAMPLE QUESTIONS


    1. MeMgBr + Product. The product is:
    a)
    b)
    c)
    d)

    2. When ethane nitrile is treated with C2H5MgBr, followed by hydrolysis, the product is:
    a)
    b)
    c)
    d)

  • 22. Oxydation 7 Reduction of Organic Compounds - Quiz


    SAMPLE QUESTIONS


    1.
    The product (A) is:
    a) Me-$\equiv$-CHO
    b)
    c)
    d)

    2.
    The product (A) is:
    a)
    b)
    c)
    d)

  • 23. Aliphetic & Aromatic Aldehyde and Ketones - Quiz


    SAMPLE QUESTIONS


    1. Which of the following cannot be used for the preparation of iodoform?
    a) Acetone
    b) Methanol
    c) Ethanol
    d) Acetaldehyde

    2. Which of the following is most easily cleaved by HBr.
    a)
    b)
    c)
    d)

  • 24. Carboxlic Acid & Its Derivatives - Quiz


    SAMPLE QUESTIONS


    1. Which reagent can distinguish between pentanoic acid and pentanamide?
    a) Cold dil. NaOH
    b) Cold dil. NaHCO3
    c) Cold conc. H2SO4
    d) All

    2.
    Product (C ) is :
    a)
    b)
    c) Both (a) and (b)
    d) None

  • 25. Organic Compounds with Functional Group - Quiz


    SAMPLE QUESTIONS


    1. Which of the following substances on treatment with P2O5 gives ethanenitrile?
    a) Propanamide
    b) Ethanamide
    c) Ethanoic acid
    d) N-Methylethyl amine

    2. Which of the following is the weakest base?
    a) (CH3)2NH
    b) (CH3)3N
    c) C6H5NH2
    d) C6H5NHCH3

  • 26. Synthetic and Natural Polymer - Quiz


    SAMPLE QUESTIONS


    1. Which of the following represents the example of a homopolymer?
    a) PMMA
    b) Bakelite
    c) Glyptal
    d) Neoprene

    2. The formation of polyethylene from calcium carbide takes place as follows:
    CaC2 + 2H2O → Ca(OH)2 + C2H2
    C2H2+H2 → C2H4

    The amount of polyethylene obtained from 64 kg of CaC2 is:
    a) 14 kg
    b) 7 kg
    c) 21 kg
    d) 28 kg

  • 27. p-Block Group 15 Elements (Nitrogen Family - Quiz


    SAMPLE QUESTIONS


    1. Catalytic oxidation of NH3 (passing a mixture of NH3 and air over heated Pt gauge) gives
    a) NO
    b) N2O
    c) N2O3
    d) N2O5

    2. Among the following the strongest acid is
    a) H3PO2
    b) H3PO3
    c) H3PO4
    d) H4P2O7