Chemistry Mock Test-10

Internal energy is

The heat of neutralization of a strong base and a strong acid is 57 kJ.The released when 0.5 mole of HNO₃ solution is added to 0.20 moles of NaOH solution,is

If concentration of reactants is increased by ‘x’,then the K becomes

CaCO₃ ⇌ CaO + CO₂ reaction in a lime kiln goes to completion because

In the reaction : 4Fe + 3O₂ ⇌ 4Fe³⁺ + 6O₂²⁻. Which of the following statement is incorrect

Number of moles of MnO₄⁻ required to oxidize one mole of ferrous oxalate completely in acidic medium will be

Which of the following higher hydration energy

The correct order of stability of the superoxides is

If we want to study relative arrangement of atoms in a molecule we study

Gasoline is a mixture of hydrocarbons containing

Both ethan and methane can be obtained in one step reaction from

In which of the following hydrocarbons, hydrogen is most acidic

The pyknometric density of sodium chloride crystal is 2.165 x 10³ kg m⁻³, while its X-rays density is 2.178 x 10³ kg m⁻³. The fraction of unoccupied sites in sodium chloride crystal is

The crystal structure of solid Mn(II) oxide is

In electrolysis of NaCl when Pt electrode is taken then H₂ is liberated at cathode while with Hg cathode it forms sodium amalgam

The standard emf of galvanic cell involving 3 moles of electrons in its redox reaction is 0.59 V. The equilibrium constant for the reaction of the cell is

When a common salt is added to the saponified product of oil, the soap is thrown out because

In the manufacture of sulphuric acid by contact process, Tyndall box is used to

Which of the following has ability to release bromine from potassium bromide

Which of the following oxides of nitrogen is paramagnetic

Mercurous chloride exists in the form of

Four successive members of the first row transition elements are listed below with their atomic numbers.which one of them is expected to have the highest third ionisation enthalpy

The coordination number and oxidation state number of Cr in K₃ Cr (C₂O₄)₃ are respectively

Crystal field stabilization energy for high spin d⁴ octahedral complex is

Which of the following halides is the most stable

To prepare a pure sample on n-hexane using sodium metal as one reactant, the other reactant or reactants will be

Among the following , the one which reacts most readily with ethanol is

Primary alcohols can be prepared by the reaction of RMgx with

CO₂ is liberated on adding sodium carbonate to a carboxylic acid.The carbon of CO₂ comes from

Clemmensen reduction of a keton is carried out in the presence of which of the following

Nitrobenzene gives N-phenylhydroxylamine by

CH₃CH₂CONH₂ on treatment with P₂O₅ yields

Which of the following hormones cantains iodine

Which one of the following has maximum laevorotatory nature

Which of the following is not true

In pressure cooker food is made faster because

Equal volumes of two monatomic gases,A and B at same temperature and pressure are mixed.The ratio of specific heats (C(p)/C(v)) of the mixture will be

One gram mole of a gas at NTP occupies 22.4 L.This facts was derived from

Volume concentration of 1.5 N H₂O₂ is

The total number of atomic orbitals in fourth energy level of an atom is

An orbital in which n = 4 and l = 2 is expressed by

Which of the following is the smallest anion

Of the following compounds the most acidic is

Which among the following does not have the hydrogen bond

In which of the following molecules is hydrogen bridge bond present