BITSAT Chemistry Test - 5

If uncertainty in the position of electron is zero, the uncertainty in its momentum would be

The maximum amount of BaSO4 precipitated on mixing BaCl2 (0.5 M) with H2SO4 (1M) will correspond to

2 g of oxygen contains number of atoms equal to that in

The compound with carbon uses only its sp³ hybrid orbitals for bond formation is

Lipids are

A 'base-sugar phosphate' unit in nucleic acid is called

The reaction,

is fastest when X is

The hybrid states of carbon in diamond, graphite and acetylene are respectively

The enthalpy of formation for C₂H₄(g),CO₂(g) and H₂O(l) at 25^oC and 1 atm. pressure be 52,-394 and -286 kJ mol^-1 respectively .The enthalpy of combustion of C₂H₄(g) will be

Elimination of bromine from 2- bromobutane results in the formation of

1 mole of N₂ and 2 moles of H₂ are allowed to react in a 1 dm³ vessel. At equilibrium 0.8 mole of NH₃ is formed. The concentration of H₂ in the vessel is

The rate of a reaction depends upon

The ionisation potential is lowest for the

Hess's law deals with

A broad spectrum antibiotic is

The correct structure of Fe(CO)₅ is (Z = 26 for Fe)

Lanthanoids are 14 elements in the

In the transition series, as the atomic no. increases, the paramagnetism

The e.m.f. of a galvanic cell with electrode potentials of Al equal to -1.66 V and that of Mg equal to - 0.54 V is

Which one of the following compounds will be most easily attacked by an electrophile ?

Which of the following has highest chlorine content?

When HCl gas is passed through a saturated solution of common salt, pure NaCl is precipitated because

In the keto-enol tautomerism of dicarbonyl compounds the enol form is preferred in contrast to the keto form, this is due to

Iodoethane reacts with sodium in ether to form

Which of the following is isoelectronic as well as has same structure as that of N₂O?

The nucleus of an atom consists of

NH₃ and BF₃ form an adduct readily because they form

Which of the following is not a characteristics of carbon?

Which of the following does not give a borax bead test?

Bio-gas and producer gas are made up of

Copolymer is

Glauber's salt is

White phosphorus reacts with caustic soda to produce PH₃ and NaH₂PO₄. The reaction is an example for

A sample of air contains only N₂, O₂ and H₂O. It is saturated with water vapours and the total pressure is 640 torr. The vapour pressure of water is 40 torr and the molar ratio of N₂:O₂: is 3:1. The partial pressure of N₂ in the sample is

2 gram of sulphur is completely burnt in oxygen to form SO₂. In this reaction what is the volume of oxygen consumed at STP in litres

The ability of an ion to bring about coagulation of a given colloid depends on

What is the molarity of H₂SO₄ solution that has a density of 1.84 gm/cc at 35^oC and contains 98% by weight?