Chemistry- CY 2015 GATE Paper (Practice Test) - GATE

Operators 

Find the value of  

if log_x(5/7) = -1/3, then the value of x is 

Q. 6 – Q. 10 carry Two mark each.

Q.

The following question presents a sentence, part of which is underlined. Beneath the sentence you find four ways of pharasing the underlined part. Following the requirements of the standard written english, select the answer that produces the most effective sentence.

Tuberculosis, together with its effect, "ranks one of the leading cause of death" in India

Read the following paragraph and choose the correct statement.

climate change has reduced human security and threatened human well being. An ignored reality of human progress is that human securiy largely depends upon environmental security. But on the contrary, human progress seems contradictory to environmental security. To keep up both at the required level is a challange to be addressed by one and all. One of the ways to curb the climate change may be suitable scientific innovations, while the other way may be the Gadhian perspective on small scale progress wih focus on sustainability.

find the missing value.

Acube of side 3 units is formed using a set of smaller cubes of side 1 unit. Find the proportion of the number of faces of the smaller cubes visible to those which are NOT visible.

Hummpty Dumpty sits on a wall every day while having lunch. the wall sometimes breaks. A person sitting on the wall falls if the wall breaks.

Which one of the statements below is logically valid and can be inferred from te above sentences.?

Q. 1 – Q. 25 carry one mark each

Q.

Which one of the following plots represents an acceptable wavefunction?

When the operator, –h²d²/dx², operates on the function e^–ikx, the result is

From the above Carnot cycle undergone by an ideal gas, identify the processes in which the change in internal energy is NON-ZERO.

For an ideal gas with molar mass M, the molar translational entropy at a given temperature is proportional to

Which one of the following defines the absolute temperature of a system?

Which of theollowing properties are characteristic of an ideal solution?

(i) (Δ_mixG)T, P is negative

(ii) (Δ_mixS)T, P is positive

(iii) (Δ_mixV)T, P is positive

(iv) (Δ_mixH)T, P is negative

The expression for the equilibrium constant (K_eq) for the enzyme catalyzed reaction given below, is

Given the E⁰ values for the following reaction sequence

the computed value of E⁰ for Mn⁶⁺→Mn²⁺ (in volts) is _______________

The absorption spectrum of [Ti(H₂O)₆]³⁺ in solution comprises of a maximum with a shoulder. The reason for the shoulder is

The ease of formation of the adduct, NH₃·BX₃ (where, X = F, Cl, Br) follows the order

An efficient catalyst for hydrogenation of alkenes is [Rh(PPh3)3Cl]. However, [Ir(PPh3)3Cl] does not catalyze this reaction, because

Among the given pH values, the O₂ binding efficiency of hemoglobin is maximum at

The intense red color of  is due to 

The compound with planar geometry is

The electrical conductivity of a metal

Which one of the following statements is INCORRECT?

The absolute configuration of C₂ and C₃ in the following compound is

Among the following compounds, the one that is non-aromatic, is

The correct order of reactivity of p-halonitrobenzenes in the following reaction is

Tollen’s test is NEGATIVE for

The compound given below is a

Amongst the following, the compound that DOES NOT act as a diene in Diels-Alder reaction is

The following conversion is an example of

The mass spectrum of a dihalo compound shows peaks with relative intensities of 1:2:1 corresponding to M, M+2 and M+4 (M is the mass of the molecular ion), respectively. The compound is

Reaction of benzaldehyde and p-methylbenzaldehyde under McMurry coupling conditions (TiCl3 and LiAlH4) gives a mixture of alkenes. The number of alkenes formed is _______________

Q. 26 – Q. 55 carry two marks each.

Q.

The difference in the ground state energies (kJ/mol) of an electron in one-dimensional boxes of lengths 0.2 nm and 2 nm is _______________

The mean ionic activity coefficient of 0.001 molal ZnSO₄ (aq) at 298 K according to the Debye- Hückel limiting law is (Debye-Hückel constant is 0.509 molal^–½) _______________

The process given below follows the Langmuir adsorption isotherm.

If θ denotes the surface coverage and P denotes the pressure, the slope of the plot of 1/θ versus  is

For a gas phase unimolecular reaction at temperature 298 K, with a pre-exponential factor of 2.17 × 1013 s–1, the entropy of activation (J K^–1 mol^–1) is _______________

A liquid has vapor pressure of 2.02 ×103 N m^–2 at 293 K and heat of vaporization of 41 kJ mol^–1. The boiling point of the liquid (in Kelvin) is _______________

The rotational partition function of a diatomic molecule with energy levels corresponding to J = 0 and 1, is (wher e, is a constant)

The internal energy of an i deal gas follows the equation U = 3.5 PV + k, where k is a constant. The gas expands fro m an initial volume of 0.25 m³ to a final volume of 0.86 m3. If the initial pressure is 5 N m–2, the change in internal energy (in Joules) is (given PV^1.3 = constant) _______________

Th e solubility product of AgBr(s) is 5×10^–13 at 298 K. If the standard reduction potential of the half-cell, , the standard reduction potential,  (in volts) is _________.

One mole of a substance is heated from 300 K to 400 K at constant pressure. The  C_P of the sub stance is given by c_p(J^-1mol^-1)= 5+0.1 T. the change in entropy, in JK^-1mol^-1, of the substance is ______________

h e potential energy (PE) versus reaction coordinate diagrams for electron transfer reactions with rate constants k₁, k₂ and k₃, are given below. The increasing order of the rate constants is

Th e distance b etween two successive (110) planes in a simple cubic lattice with lattice parameter

‘a’ is

The percent transmittance of 8 × 10^-5 M solution of KMnO⁴ is 39.8 when measured at 510 nm in a cell of path length of 1 cm. The absorbance and the molar extinction coefficient (in M^-1cm^-1) of this solution are, respectively,

The value of ‘g’ and the number of signals observed for the reference standard, diphenylpicrylhydrazyl (DPPH), in the solid state ESR spectrum are, respectively

Ammonolysis of S2Cl2 in an inert solvent gives

The complexes K₂[NiF₆] and K₃[CoF₆] are

The point group of IF₇ is

When one CO group is replaced by PPh₃ in [Cr(CO)₆], which one of the following statements is

TRUE?

Identify X in the reaction, [Pt(NH₃)₄]²⁺ + 2 HCl X

Identify the function of hemocyanin and the metal responsible for it.

The limiting current (in μA) from the reduction of 3 × 10^-4 M Pb²⁺, using a dropping mercury electrode (DME) with characteristics, m = 3.0 mg s^-1 and t = 3s, is (diffusion coefficient of Pb²⁺ = 1.2 × 10^-5 cm² s^-1) _______________

The number of possible stereoisomers obtained in the following reaction is _______________

Important : you should answer only the numeric value

The major product formed in the following reaction is

The most suitable reagent(s) to effect the following transformation is

The major product formed in the following reaction is

Solvolysis of the optically active compound X gives, mainly

The major product formed in the following reaction is

The tetrapeptide, Ala-Val-Phe-Met, on reaction with Sanger’s reagent, followed by hydrolysis gives

The major product formed in the following reaction is

The Beckmann rearrangement of a bromoacetophenone oxime (C₈H₈BrNO) gives a major product having the following ¹H NMR (δ, ppm): 9.89 (s, 1H), 7.88 (s, 1H), 7.45 (d, 1H, J = 7.2 Hz), 7.17 (m, 1H), 7.12 (d, 1H, J = 7.0 Hz), 2.06 (s, 3H). The structure of the product is

The major products, K and L formed in the following reactions are