The amine that reacts will Hinsberg's reagent to give an alkali insoluble product is :
Which structure(s) of proteins remains(s) intact during denaturation process?
The polymer that is used as a substitute for wool in making commercial fibres is
The artificial sweetner stable at cooking temperature and does not provide calories is
The liquified gas that is used in dry cleaning along with a suitable detergent-
When vapours of a secondary alcohol is passed over heated copper at 573 K, the product formed is -
The alkane that gives only one mono-chloro product on chlorination with Cl₂ in presence of diffused sunlight is :
Which of the following compounds is used in cosmetic surgery?
Identify the incorrect statement.
When neutral or faintly alkaline KMnO4 is treated with potassium iodide, lodide ion is converted into 'X'. 'X' is
A first order reaction has a rate constant of (2.303x10-³)s-¹.The time required for 40g of this reactant to reduce to 10 g will be-
For a reaction, activation energy Ea=0 and the rate constant at 200K is 1.6x10⁶s-¹. The rate constant at 400K will be- Given that gas constant,R=8.314JK-¹ mol-¹
Which of the following is paramagnetic?
Which of the alkali metal chloride (MCl) forms its dihydrate salt (MCl.2H₂O) easily?
The pH of 0.01 M NaOH (aq) solution will be-
The molar solubility of CaF2 (Ksp=5.3x10-¹¹) in 0.1 M solution of NaF will be
The oxidation state of Cr in CrO6 is-
The number of hydrogen bonded water molecules associated with CuSO4.5H₂O is-
Which of the following statements is correct regarding a solution of two compounds A and B exhibiting positive deviation from ideal behaviour?
In water saturated air the mole fraction of water vapour is 0.02 If the total pressure of the saturated air is 1.2 atm, the partial pressure of dry air is-
The density of 2 M aqueous solution of NaOH is 1.28 g/cm³. The molality of the solution is- Given that molecular mass of NaOH= 40 g mol-¹
Orbital having 3 angular nodes and 3 total nodes is:
In hydrogen atom, the de Broglie wavelength of an electron in the second Bohr orbit Is: (Given that Bohr radius, a0=52.9pm)
The volume occupied by 1.8 g of water vapour at 374° C and 1bar pressure will be:- (Use R=0.083 bar L K-¹mol-¹)
1 out of 2
An ideal gas expands isothermally from 10-³m³ to 10-²m³ at 300 K against a constant pressure of 10⁵ Nm-² The work done on the gas is:
Under isothermal condition, a gas at 300 K expands from 0.1L to 0.25L against a constant external pressure of 2 bar. The work done by the gas is: ( Given that 1L bar=100 J)
The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber's process is:
Among the following, the one that is not a green house gas is :
The number of sigma (σ) and pi (π) bonds in pent-2-en-4-yne is:
Which of the following diatomic molecular species has only π bonds according to Molecular Orbital Theory?
Among the following, the narrow spectrum antibiotic is :
The most suitable reagent for the following conversion is :
The manganate and permanganate ions are tetrahedral ,due to -
For the second period elements the correct increasing order of first ionisation enthalpy is:
If the rate constant for a first order reaction is k, the time (t) required for the completion of 99% of the reaction is given by:
Identify the incorrect statement related to PCl5 from the following:
4d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is :
The biodegradable polymer is:
Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is:
Which of the following series of transitions in the spectrum of hydrogen atom falls in visible region?
The mixture that forms maximum boiling azeotrope is:
In which case change in entropy is negative-
The non-essential amino acid among the following is:
A gas at 350 K and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor (Z) is:
2 out of 2
The method used to remove temporary hardness of water is: