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Topic :: Reaction





Reaction Interview Questions
Questions Answers Views Company eMail

If the enthalpy change for a reaction is zero, DG? is equal to: a) DH? b) lnKeq c) TDS? d) -TDS?

 1 3951

In Reimer-Tiemann?s reaction, the reaction intermediate is (a) Carbene (b) Dichloro carbene (c) Carbonion (d) Carbonium ion.

Biotech, Wipro,

1 12163

The rate of the first order reaction depends on the (a) Concentration of the reactant (b) Concentration of the product (c) Time (d) Temperature.

Wipro,

1 3554

Explain how a system of chemical reactions can be represented as ODEs and PDEs?

 1 2020

How measurements of reaction times can be used to infer brain architecture?

 1 1947

Explain the Deacon reaction?

2 9700

Which type of hypersensitivity reaction is a mast cell involved in?

 1 4163

What are the products of the neutralization reaction between hydrochloric acid & magnesium hydroxide?

 2 10880

what are the types of chemical reactions?

 5 8534

Equation of the reaction between AgNO3 and NaBH4?

 3 11617

Explain about Characters of Catalytic Reactions ?

 1 3841

The critical mass of a nuclear reaction is (1) The initial mass to start a nuclear fission (2) The minimum mass for the chain reaction (3) The size of the reactor core (4) The size of the reactor core + size of the moderator

 2 4615

what is the difference between impulse and reaction turbines ?

Alstom, ATMS, NTPC,

40 118257

A chemical reaction that takes place with the evolution of heat is called a/an (A) Reversible reaction (B) Endothermic reaction (C) Thermal reaction (D) Exothermic reaction

Kerala Public Service Commission, Savitha Chemicals,

3 12737

To control nuclear reactions in a nuclear reactor so that explosion does not occur, one uses, (1) Cadmium rods (2) Carbon rods (3) Heavy water (4) Aluminium rods

 1 3503



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Un-Answered Questions { Reaction }

1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.

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