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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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 :





All the three oxygen atoms of ozone are utilized in the oxidation of





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





At T (K), 100 L of dry oxygen is present in a sealed container. It is subjected to silent electric discharge, till the volumes of oxygen and ozone become equal. What is the volume (in litres) of ozone formed at T (K)?





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





An oxide of an element is a gas and dissolves in water to give an acidic solution. The element belongs to





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





Beryllium shows diagonal relationship with aluminium.Which one of the following similarity is not correct





Study the following table: Buffer solution Volume(in ml) of 0.M weak Volume(in ml) of 0.1 M sodium salt of weak acid I 4.0 4.0 II 4.0 40.0 III 40.0 4.0 IV 0.1 10.0 Which of the two sets of buffer solutions have least pH?





Which of the following is not an air pollutant





Ordinary glass is a combination of the following





Which of the following is not a lipids





Which of the following halide does not contain a lone pair of electrons on the central atom





When the same amount of zinc is treated with excess of H2SO4 and with excess NaOH, the ratio of the volume of H2 evolved is





X liter of carbon monoxide is present at STP. It is completely oxidized to CO2. The volume of CO2 formed is 11.207 litres. What is the value of X in litres





A metal nitride contains 28% nitrogen by weight. The molecular formula of metal nitride is M3N2 What is the atomic weight of metal





Average C-H bond energy is 416 kJ. mol-1. Which of the following is correct ?





Order of boiling points





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





Atoms of different elements having identical mass are known as :





Which one of the following is used as an acid flux in metallurgy ?





Which of the following set of variables give a straight line with a negative slope when plotted ?(P - vapour pressure, T = Temperature in K)





A mixture contains 10 g of oxygen, 28g of nitrogen and 8g of CH4.Total pressure of mixture is 740mm.What is the partial pressure of nitrogen in mm





The equilibrium constants for the reactions N2(g)+O2(g)⇔2NO(g) and NO(g)+1/2 O2(g) are K1 and K2 respectively .Then the equilibrium constant for the reaction N2(g)+O2(g)⇔2NO2(g) is





The time for half life of a first order reaction is 1 hour. What is the time taken for 87.5% completion of the reaction





A(g)+2B(g)⇔2C(g)+D(g) was studied using an initial concentration of B which was 1.5 times that of A .But the equilibrium concentrations of A and B were found to be equal .Then Kc for the equilibrium





An organic compound X on treatment with pyridium dichromate in dichloromethane gives compound Y.Compound Y reacts with I2 and alkali to form idoform.The compound X is





9.2 gm of N2O4(g) is taken in a closed one litre vesseland heated till the following equilibrium is reached N2O4(g)⇔2NO2(g).At equilibrium 50% of N2O4(g) is dissociated.what is the equilibrium constant(in mole lit-1)(M.wt of N2O4 is 92)





Which of the following statements is NOT correct?





The wavelengths of electron waves in two orbits is 3 : 5. The ratio of kinetic energy of electrons will be





The oxidation states of nitrogen in NH4NO3 is /are





Which of the following is an example of interstitial hydride





Which of the following is correct





The conjugate acid of NH2- ion is:





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





The number of pπ - dπ 'pi' bonds present in XeO3and XeO4molecules, respectively are





Assertion (A) : NaCl is less soluble in heavy water than in ordinary water,Reason (R) : Dielectric constant of ordinary water is more than that of heavy waterThe correct answer is





At 270C, 500 mL of helium diffuses in 30 minutes. What is the time (in hours) taken for 1000 mL of SO2 to diffuse under same experimental conditions ?





The conjugate base of HSO4- ion is:





Carbogen to





Oxidation number of oxygen in OF2 is





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





Identify 'acetaldoxime'





The disperse phase, dispersion medium and nature of colloidal solution (lyophilic or lyophobic) of 'gold sol' respectively are :





The number of sigma and pi bonds in peroxodisulphuric acid are, respectively





The equilibrium constants for the reactions N2(g)+O2(g)⇔2NO(g) and NO(g)+1/2O2(g)⇔NO2(g) are K1 and K2 respectively. Then the equilibrium constant for the reaction N2(g)+2O2(g)⇔2NO2(g) is





Which of the following compounds answer positively carbyl amine test? A) C6H5NHCH3 B) CH3-C6H6-NH2 C) C6H6-NH2 D) C6H6-NH (CH3)2





Consider the two gaseous equilibria involving SO2 and the corresponding equilibrium constants at 298K SO2(g)+1/2O2(g)⇔SO3(g);K1 2SO3(g)⇔2SO2(g)+O2(g);K2 The values of the equilibrium constants are related by





When X amperes of current is passed through molten AlCl3 for 96.5 second,0.09g of alumunium is deposited.What is the value of X





Molar conductivity of a solution 1.26 x 102Ω-1cm2mol-1 ,its molarity is 0.01.its specific conductivity will be





The hemoglobin from the red blood corpuscles of most mammals contains approximately 0.33% of iron by weight. The molecular weight of hemoglobin as 67200.the number of iron atoms in each molecule of hemoglobin is (atomic weight of iron = 56)





For a reversible reaction, if the concentrations of the reactants are doubled, then the equilibrium constant value





In dry cell cathode is





If in a 100 mL of an aqueous HC1 of pH 1.00, 900 mL of more distilled water is added, the pH of the resultant solution will be :





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





What is the hybridization state of the central atom in the conjugate acid of NH3?





The molecule having zero dipole moment is:





Which of the following is not correct regarding the properties of ionic compounds ?





The value of Kp for the reaction 2AB(g)⇔2A(g)+B2(g) is 1.2x10-2 at 1065oC.The value of Kc for this reaction is





Assertion(A): A catalyst has no effect on the state of equilibrium Reason:A catalyst influences the rates of both forward and backward reactions to the same extent





Which one of the following compounds liberates CO2 from aqueous NaHCO3





For a given reaction which one is higher than the rest among the following





Calculate the emf of the cell   Cu (s) | Cu2+ (aq) || Ag+ (aq) | Ag (s)  GivenEoCu2+/Cu  = +0.34V ,  EoAg+/Ag  =0.80 V





The order of pH of 0.200 M solutions of NH4NO3, NaNO3 and Na2CO3 is





The correct structure of 4-bromo 3-methyl-but-1-ene:





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





Which of the following is called Rosenmund reaction?





The nature of forces operating between the adsorbate and the adsorbent in the adsorption occurring at high temperature is





Which of the following is added to chloroform to slow down its aerial oxidation in presence of light ?





Which of the following alkali metals has the greatest tendency for the half reaction;  M(g) →M+(aq) + e





Cuprous ion is colourless while cupric ion is coloured because :





Which of the following does not participate in carbylamine reaction?





75% of first order reaction is completed in 32 minutes 50% of the reaction would have been completed in





A solution of concentration "C" g equiv/litre has a specific resistance R, The equivalent conductance of the solution is





In the extraction of iron from haematite,the charge used is haematite,coke and lime stone in the following weight ratio





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





A certain mass of a gas occupies a volume of 2 L at STP. To what temperature the gas must be heated to double its volume, keeping the pressure constant





Which one of the following functional groups undergoes hydrolysis with alkali to yield an acid group





Resonance in benzene is accompanied by delocalization of π –electrons. Each π electron is attached with





The compound prepared by a substitution reaction of benzene is





138 g of ethyl alcohol is mixed with 72 g of water. The ratio of mole fraction of alcohol to water is





Which one of the following elements reduces NaOH to Na?





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 ?





A sample of 100ml water required 0.294mg of K2Cr2O7(mol.wt=294)for oxidizing dissolved organic compounds in it. The C.O.D of water sample is





In the Born-Haber cycle of the given reaction Na(s) + (1/2)Cl2(g) →NaCl(s)the number of endothermic and exothermic stages respectively are





Which one of the following statements is correct





Which of the following biomolecules acts as specific catalysts in biological reaction





An isomer of ethanol is





When aniline is treated with CHCI3 and KOH, the product is :





Which one of the following pairs of reactants does not form oxygen when theyreact with each other





Which of the following is not a peroxy acid





Gold number is used to show





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





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





The solubility of the impurities in the metal in molten and solid states is different. The principle involved in the refining of metal is





The two sulphur atoms in Na2S2O3 have





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





Exhausted permutit does not contain .... ion :





148mg of Ca(OH)2 is required to remove hardness of one lit. of hard water by Clarke’s process. If hardness is due to only calcium bicarbonate, what is the degree of hardness of sample of water?





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