Eamcet - Chemistry Test

Test Instructions :

1. The Test is 1hr duration.
2. The Test Paper consists of 30 questions. The maximum marks are 30.
3. All the questions are multiple choice question type with three options for each question.
4. Out of the three options given for each question, only one option is the correct answer.
5. Each question is allotted 1 mark for each correct response.
6. 0.25 will be deducted for incorrect response of each question.
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The gold numbers of three protective colloids A, B, and C are 0.05, 0.01 and 0.5 respectively. The decreasing order of their protective power is:





X,Y,Z hydrocarbons molecular formula are CH4, C2H4, C2H2, these three are passed through porcelain tube containing ammonical cuprous chloride. The out coming gases would be





Aniline when heated with NaNO2 and HCl at 0.50C the product formed is:





On passing a current through a KCl solution, 19 5 g. of potassium is deposited. If the same quantity of electricity is passed through a solution of aluminium chloride, the amount of aluminium deposited is:





The   IUPAC    name    of   the    compound(CH3)2CH-CH=CH-CHOH-CH3 is





n moles of an ideal gas at temperature T (in kelvin) occupy VL of volume, exerting a pressure of P atmospheres.What is the concentration (in mol / L)?





Bhopal gas tragedy of 1984 was caused by





If a gas contains only three molecules that move with velocities of 100,200,500 ms-1.What is the rms velocity of that gas in ms-1





Anhydrous Magnesium chloride can be prepared by heating MgCl2.2H2O





CFCl3 is responsible for the decomposition of ozone to oxygen. Which of the following reacts with ozone to form oxygen ?





AB is an ionic solid. The ionic radii of A+ and B- are respectively rc and ra. Lattice energy of AB is proportional to :





The standard reduction electrode potential values of the elements A, B and C are +0.68V, -2.5V and -0.5V respectively. The order of their reducing power is





The gold numbers of three protective colloids A, B, and C are 0.05, 0.01 and 0.5 respectively. The decreasing order of their protective power is





Which one of the following elements reduces NaOH to Na?





The earthy impurities present in the mineral are called





Which of the following reacts with ammoniacal cuprous chloride





The ratio of radii of first orbits of H, He+ and Li+2 i





In dry cell cathode is





Three faradays of electricity are passed through molten Al2O3, aqueous solution of CuSO4 and molten NaCl taken in three different electrolytic cells. The amount of Al,Cu and Na deposited at the cathodes will be in the ratio of





For the reversible reaction C2H4 + H2 ⇔ C2H6 the equilibrium constant can be expressed in units of





Which of the following is correct ?





The flux used in the extraction of iron from Haematite in the blast furnace is





Hydrolysis of chloroform with aqueous KOH gives finally





Which of the following not obtained when methyl chloride and n-propyl chloride react with sodium in dry ether





The decomposition of H2O2 may be decreased by adding a small quantity of glycerol.This is an example of





One mole of A and 2 moles of B are allowed to react in a one lit flask. What is the value of Kc if at equilibrium,0.4 moles of C is formed in the reaction A+2B⇔C+2D





The first organic compound synthesized in the laboratory from an inorganic compound is:





The oxidation state of Mo in MO2 (Cl8)4- ion is





What is the volume (in litres) of oxygen required at STP to completely convert 1.5 mol of sulpher into sulpher dioxide





Order of boiling points





Which of the following is a favourable factor for cation formation





Two oxides of nitrogen,NO and NO2 react together at 2530K and form a compound of nitrogen X.X reacts with water to yield another compound of nitrogen Y.The shape of the anion of Y molecule is





In 0.01 M solution,HCN is 0.01% ionized. Its dissociation constant is










The value of Kp for the reaction 2H2S(g)⇔2H2(g)+S2(g) is 1.2 x 10-2 at 10650C.The value of KC for the reaction is





The weight in grams of a non-volatile solute (M.wt:60) to be dissolved in 90 g of water to produce a relative lowering of vapour pressure of 0.02 is





The atomic numbers of elements X, Y and Z are 19, 21 and 25 respectively. The number of electrons present in the M shell of these elements follow the order





Dry distillation of calcium acetate and calcium formate forms:





Which one of the following reactions does not form gaseous product





An electron is moving in Bohr's fourth orbit. Its de-Broglie wave length is X. What is the circumference of the fourth orbit





CaCl2+C2H5OH→CaCl2xC2H5OH,in this ‘x’ is





Aluminium reacts with NaOH and forms compound X. If the coordination number of aluminium in X is 6, the correct formula of X





Bauxite is boiled with aqueous NaOH solution. Sodium meta aluminate solution is formed. This part in the metallurgy of aluminium is called





The olefin which on ozonolysis gives CH3CH2CHO and CH3CHO is





In photoelectric effect, if the energy required to overcome the attractive forces on the electron,(work functions) of Li, Na and Rb are 2.41eV, 2.30eV and 2.09eV respectively, the work function of ‘K’ could approximately be in eV





Which one of the following noble gases is used in miner's cap lamps





Which of the following is not correct





 Which of the following is not correct





While phosphorus form PCl5, nitrogen does not form NCl5 because





How many electrons are present in the M shell of an atom of an clement with atomicnumber 24 (Z = 24) ?





3.42g of substance of molecular weight 342 is present in 250g of water.Molality of this solution is





......of a reaction cannot be determined experimentally:





The correct order of reducing abilities of hydrides of V group elements is





CCl3COCH3+Ca(OH)2→X+Y. Here X and Y are





In lime kiln the reaction CaCO3(s)⇔CaO(s)+CO2(g)





Which one of the following is used in the preparation of styrene?





The rate constant of a first order reaction at 27°C is 10-3 min-1. The temperature coefficient of this reaction is 2. What is the rate constant (in min-1) at 17°C for this reaction ?





An organic compound containing C and H has 92.3% of carbon, Its empirical formula is:





Aqueous solution of an organic compound, 'A' on electrolysis liberates acetylene and CO2 at anode. 'A' is





Which of the following is an endothermic reaction ?





3-hydroxybutanal is formed when (X) reacts with (Y) in dilute (Z) solution. Whatare X, Y and Z





An isomer of ethanol is





The addition of HCl will not suppress the ionization of





What is the molecular formula of the product formed when benzene is reacted with ethyl chloride in presence of anhydrous aluminum chloride ?





The following are some statements related to VA group hydrides,I . Reducing  property increases from NH3 to BiH3.II..Tendency to donate lone pair decreases from NH3 to BiH3III.Thermal stability of hydrides decreases from NH3 to BiH3.IV. Bond angle of hydrides decreases from NH3 to BiH3.The correct statements are





On adding a little phosphorous to silicon, we get a/an





In the extraction of sodium by Down's process, cathode and anode are respectively:





The half-life period of a radioactive substance is 150 days. Starting with an initial quantity of 1 mg of the substance the fraction of that has disintegrated in 600 days is





Calculate ∆H0 for the reaction Na2O(s) + SO3 (g)→ Na2SO4(g) given the following1. Na(s) + H2O(l) →NaOH (s)+ 1/2 H2(g) ∆H0  = -146kJ2.Na2SO4(s) + H2O(l) →2NaOH(s) + SO3(g) ∆H0  = +418kJ3. 2Na2O(s) + 2H2(g) →4Na (s) + 2 H2O(l) ∆H0 = +259kJ





Calorific value of producer gas is low because of





In which of the following reactions, the concentration of product is higher than the concentration of reactant at equilibrium (K=equilibrium constant)





The copper metal is mainly extracted from its





The molecule having zero dipole moment is:





The molar concentrations of A,B and C at equilibrium for the reaction A+2B⇔3C are 2,3 and 4 moles/lit respectively. Its Kc is





In which of the following cases, the reaction is spontaneous at all temperatures





During electrolytic reduction of aluminia,the reaction at cathode is





In the reaction AlCl3+Cl-→AlCl4-, AlCl3 is





The final product formed on the strong heating of H3BO3





Which of the following reacts with ethanol to form chloroform





'Natalite' is used as





The hydrolysis constant Kh of a salt of NaOH and a weak acid (HX) If the Ka of the acid is Ka=2x10-6





Which one of the following compounds liberates CO2 from aqueous NaHCO3





The molarity of pure water is:





Vicinal dihalide (C2H4Br2) on heating with excess alc.KOH and Zinc dust gives ’y’ and ‘z’ respectively. Both ‘y’ and ’z’ on oxidation with Bayer’s regent gives A and B.A and B respectively are





The half-lives of two radioactive nuclides A and B are 1 and 2 min respectively. Equal weights of A and B are taken separately and allowed to disintegrate for 4 min. What will be the ratio of weights of A and B disintegrated





Anhydrous Magnesium chloride can be prepared by heating MgCl26H2O





H2-O2 fuel cell is





One mole of fluorine is reacted with two moles of hot concentrated KOH. The products formed are KF, H2O and O2. The molar ratio of KF, H2O and O2 respectively is





If the bond length and dipole moment of a diatomic molecule are 1.25 A and 1.0D respectively,what is the percent ionic character of the bond





Carbogen to





The total pressure of a mixture of 6A of O2 and 5.6 g of N2 present in a 2 litre vessel is 1200 mm. What is the partial pressure (in mm) of nitrogen?





A mixture of Haematite,coke and limestone on heating in blast furnace gives molten iron metal.This is known as





The solubility of AgCl in NaCl solution is less than that in pure water,because





If 20 mL of 0.4 N NaOH sol ution completely neutralised 40 mL of a dibasic acid, the molarity of the acid solution is :





The numbers of unit cells present in 5.85mg of NaCl crystal are





Active mass of 56 g of N2 contained in 2 ltr.Flask is





For the reaction 2SO2(g)+O2(g)2SO3(g) taking place in one litre vessel, the number of moles of SO2 ,O2,SO3 at equilibrium are 2,1 and 2 moles respectively, under a total pressure of 15 atm.The Kp of the reaction is





If ΔE is the heat of reaction for C2H5OH(1)+3O2(g)→2CO2(g)+3H2O(l) at constant volume,the ΔH(Heat of reaction at constant pressure)at constant temperature is





A catalyst increases the rate of reaction because it :





Al3+ion has a lower ionic radius than Mg2+ ion because :





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