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.
Start Test

   Time Left : 00 : 30    : 00

The type of bonds present in sulphuric anhydride

  

  

  

  

Assertion(A): The molecularityof reaction is a whole number other than zero, but generally less than 3. Reason(R): The order of a reaction is always a whole number

  

  

  

  

Identify the correct order in which the covalent radius of the following elements increasesI. TiII. CaIII. Sc

  

  

  

  

The molecular formula of potash alum is :

  

  

  

  

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

  

  

  

  

1.5 g of CdCl2 was found to contain 0.9 g of Cd. Calculate the Atomic weight of Cd

  

  

  

  

Identify the reaction for which ΔH ≠ ΔE :

  

  

  

  

Which of the following is not correct

  

  

  

  

Aniline is treated with NaNO2 and HCl at 00C,the product formed is:

  

  

  

  

Ultrapure elements are obtained in the following method of metal refining

  

  

  

  

Which of the following is a linear molecule

  

  

  

  

Which of the following is not an air pollutant

  

  

  

  

For the reaction H2(g)+I2(g)⇔2HI(g) at 721 K,the value of equilibrium constant KC is 50.The value of KP under the same conditions will be

  

  

  

  

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

  

  

  

  

The chemical formula of feldspar is

  

  

  

  

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

  

  

  

  

The molarity of pure water is:

  

  

  

  

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

  

  

  

  

Which of the following statements is correct

  

  

  

  

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

  

  

  

  

Which of the following reacts with benzene in presence of anhydrous aluminum chloride and forms acetophenone ?

  

  

  

  

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

  

  

  

  

In dry cell cathode is

  

  

  

  

The metal used for the de-bromination reaction of 1, 2 dibromoethane

  

  

  

  

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

  

  

  

  

List -I List-II (A) Flespar (I) [Ag3SbS3] (B) Asbestos (II) Al2O3 . H2O (C) Pyrargyrite (III) MgSO4 . H2O (D) Diaspore (IV) KAlSi3O3 (V) CaMg3(SiO3)4

  

  

  

  

The heat of formation of HI from the equation H2+I2→2HI,ΔH=+52 KJ is

  

  

  

  

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

  

  

  

  

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

  

  

  

  

CH3COOH ----LiAlH4--->  AA + CH3COOH ---H3O+ ----->  B + H2OIn the above reactions 'A' and 'B' respectively are

  

  

  

  

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

  

  

  

  

The oxidation states of nitrogen in NH4NO3 is /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

  

  

  

  

The weakest acid among the following is

  

  

  

  

Hydrolysis of NCI3 gives NH3 and X. Which of the following is X ?

  

  

  

  

SiCl4 on hydrolysis forms X and HCI. Compound X loses water at 1000oC and gives Y. Compounds X and Y respectively are

  

  

  

  

The decomposition of N2O5 → NO2+NO3 proceeds as a first order reaction, with a half-life period of 30 seconds at a certain temperature.The rate constant of the reaction is

  

  

  

  

While phosphorus form PCl5, nitrogen does not form NCl5 because

  

  

  

  

In aqueous solutions H2O2 oxidises H2S to

  

  

  

  

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

  

  

  

  

Which of the following is the anhydride of HNO3

  

  

  

  

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?

  

  

  

  

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

  

  

  

  

Which of the following is obtained in carbyl amine reaction from aniline

  

  

  

  

Hydrolysis of trichloro methane with aqueous KOH gives

  

  

  

  

The decreasing order of bond dissociation  energies of   C-C , C-H and H-H i bond is

  

  

  

  

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

  

  

  

  

Which of the following is not a lipids

  

  

  

  

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

  

  

  

  

The charge required to reduce 1 mole Cr2O7-2 to Cr+3 ions is

  

  

  

  

Which pair of oxyacids of phosphorous contain ‘P - H' bonds

  

  

  

  

The earthy impurities present in the mineral are called

  

  

  

  

Which of the following functional group shows +R effect

  

  

  

  

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

  

  

  

  

Dry distillation of calcium acetate and calcium formate forms:

  

  

  

  

Sodium is heated in air at 3000C to form X. X absorbs CO2 and forms Na2CO3 and Y. Which of the following is Y

  

  

  

  

Which of the following reacts with ethanol to form chloroform

  

  

  

  

What is the correct order of occurrence (% by weight) in air of Ne, Ar and Kr ?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Observe the following statements regarding purification of bauxiteI. During Hall's process, silica is removed as Si (vapour)II. Bauxite ore contaminated with Fe2O3 is purified in Baeyer's processIII. During Serpeck's process, AlN is formedThe correct answer is

  

  

  

  

In the extraction of copper, the slag formed in the blast furnace

  

  

  

  

The rate of the reaction at 400C is 5 units.The rate of same reaction at 800C is nearly(temperature coefficient)

  

  

  

  

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

  

  

  

  

The charge present onn one azide ion in columbs is

  

  

  

  

The number of oxygen atoms bonded to one phosphorus atom in P4O6 is:

  

  

  

  

A mixture of sodium oxide and calcium oxide are dissolved in water,and saturated with excess carbon dioxide gas.The resulting solution is.....It contains.......

  

  

  

  

The ΔG in the process of melting of ice at -150C and 1atm pressure is

  

  

  

  

Conjugate base of H2SO4 is

  

  

  

  

When a copper wire is dipped in a aqueous AgNO3 solution, the solution turns blue,The reason for this is

  

  

  

  

Among  the following, which is water insoluble

  

  

  

  

The concentration of oxalic acid is 'x'mol L-1. 40 mL of this solution reacts with 16 mL of 0.05 M acidified KMn04. What is the pH  of 'x' M oxalic acid solution ? (Assume that oxalic acid dissociates completely)

  

  

  

  

The gas that is used for sterilizing water is

  

  

  

  

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

  

  

  

  

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

  

  

  

  

In the reaction BCl3+PH3→[Cl3B←PH3] the lewis base is

  

  

  

  

The most abundant group of lipids and animals is

  

  

  

  

One atom of 3919K contains:

  

  

  

  

A and B are ideal gases. The molecular weights of A and B are in the ratio of 1 : 4. The pressure of a gas mixture containing equal weights of A and B is P atm. What is the partial pressure (in atm) of B in the mixture ?

  

  

  

  

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

  

  

  

  

Assertion (A) : A current of 96.5 A is passed into aqueous AgNO3 solution for 100 s. The weight of silver deposited is 10.8 g (At. wt. of Ag = 108)Reason (R) : The mass of a substance deposited during the electrolysis of an electrolyte is inversely proportional to the quantity of electricity passing through the electrolyte.The correct answer is :

  

  

  

  

When 9.65 Coulombs of electricity is passed through a solution of AgN03 (atomic weight of silver 108), the amount of silver deposited is

  

  

  

  

Which among the following element does not liberate H2 gas on reaction with NaOH?

  

  

  

  

The maximum number of sub-levels, orbitals and electrons in N shell of an atom are respectively

  

  

  

  

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

  

  

  

  

Which of the following is used for making optical instruments ?

  

  

  

  

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

  

  

  

  

 Which of the following is a pair of functional isomers

  

  

  

  

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

  

  

  

  

The number of sigma and pi (π) bonds present in benzene respectively are :

  

  

  

  

Which of the following has the highest first IP

  

  

  

  

The wavelength of a spectral line emitted by hydrogen atom in the Lyman series is (16/15)hr cm  .What is the value of n2   (R= Rydberg Constant)

  

  

  

  

Nitro benzene on reduction with zinc and NH4CI gives

  

  

  

  

Which of the following is a biodegradable polymer

  

  

  

  

The conjugate acid of SO42- is

  

  

  

  

In Freundlich adsorption isotherm, the intercept is equal to

  

  

  

  

Which of the following pair of ions have same paramagnetic moment

  

  

  

  

PH of a solution produced when aqueous solution of PH 6 is mixed with an equal volume of an aqueous solution oh PH is about

  

  

  

  

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

  

  

  

  

Note:
  • Click the 'Submit Test' button given in the bottom of this page to Submit your answers.
  • Test will be submitted automatically if the time expired.
  • Don't refresh the page.