BITSAT Chemistry Test - 7
40 Questions MCQ Test BITSAT Mock Tests Series & Past Year Papers | BITSAT Chemistry Test - 7
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In hydrogen atom, energy of first excited state is -3.4 eV. Then find out the K.E. of the electron in the same orbit of hydrogen atom
Glucose forms a silver mirror with Tollen's reagent. This shows a presence of
The energy of an electro-magnetic radiation is 19.875 x 10 − 13 ergs. What is the wave number in cm-1
The least count of an instrument is 0.01cm. Taking all precautions, the most possible error in the measurement can be
Which of the following alkyl group has the maximum + I effect?
The number of equivalents of Na2S2O3 required for the volumetric estimation of one equivalent of Cu2+ is
Volumetric estimation of Cu2+ is carried out iodometrically as follows:
2 Cu2+ + 4 Kl = 2 Cul2 + 4K+
2 Cul2 = 2 Cul + l2
This liberated l2 is titrated against Na2S2O3 solution
2Na2S2O3 + l2 = Na2S4O6 + 2 Nal
2 moles Cu2+ ions ≡ 1 mole l2 ≡ 2 moles of Na2S2O3
∴ 1 mole Cu2+ ion ≡ 1 mole Na2S2O3
Eq. wt. of Na2S2O3 = mol. wt
∴ 1 mole Cu2+ ion ≡ 1 Eq. wt. of Na2S2O3
Which of the following does not have sp2-hybridised carbon?
Which of the following gives maximum energy in metabolic process?
Which one of the following molecules will have unequal bond lengths around the central atom?
If an endothermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then
A chemical reaction is catalyzed by a catalyst X. Hence X
As per the modern periodic law the physical and chemical properties of elements are periodic function of their
Modern periodic law states " If the elements are arranged in order of their increasing atomic numbers, the elements with similar properties are repeated after certain regular intervals.
The heat of combustion of yellow and red phosphorus are -9.91 kJ mol⁻1 and -8.78 kJ mol⁻1 respectively. The heat of conversion of yellow P → red P is
The dark blue colour of the solution formed when excess of ammonia is added to a solution of copper (II) sulphate is due to the presence of the ion :
Which of the following series involves gradual filling of 5f-level?
Which of the following element belongs to the third row transition series?
In which of the following reaction, hydrogen is acting as an oxidising agent?
In electrophilic substitution reactions nitrobenzene is
The process used for the removal of hardness of water is
In which of the following acid-base titration pH is greater than8 at the equivalence point ?
Which of the following compounds will be most easily attacked by an electrophile ?
Which of the following oxides of nitrogen reacts with FeSO₄ to form a dark brown compound?
In the reaction 4HNO₃ + P₄O₁₀ → 4HPO₃ + X, the product X is
The aqlueous solution/liquid that absorbs nitric oxide to a considerable extent is
Amongst elements of Group 15, the property which increases down the Group is
Which of the following does not participate in the Solvay's process for the manufacture of Na₂CO₃?
Electrochemical process (electrolysis of fused salt) is employed to extract
Which of the following 0.1 M aqueous solutions will have the lowest freezing point
If the four tubes of a car are filled to the same pressure with N₂, O₂, H₂ and helium separately, then which one will be filled first
Haemoglobin contains 0.334% of iron by weight. If molecular weight of haemoglobin is approximately 67200, then the number of iron atoms (At.wt. of Fe is 56) present in one molecule of haemoglobin are
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