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Topic :: Reaction





Reaction Interview Questions
Questions Answers Views Company eMail

European Rapid Reaction Forces are in (1) Rwanda (2) Somalia (3) Bosnia (4) Maldives

 1 3153

What reactions cause safranin to stain plant tissues red?

 1 2419

How are reaction rates dependent upon free energy changes?

 1 2427

How are free energy changes dependent upon the reaction pathway?

 1 3503

What are the structures of the products of this reaction, and how are they identified?

 1 2120

How are coupled reactions used in biochemistry?

 1 2445

What reaction is catalyzed by proteases? What steps are involved in determining the primary structure of a protein?

 2 23254

Is exothermic reaction useful in Lasing process? give reasion of ur answere?

DRDO,

2 6573

Which of the following is produced during allergic reactions? 1 heparin 2 Histamine 3 Serotonin 4 Selastamine

 1 4293

The isotope of uranium capable of sustaining chain reactions is 1 U-235 2 U-238 3 U-239 4 None of these

 1 7606

Which of the following is not a chemical reaction? 1 Burning of paper 2 Digestion of food 3 Conversion of water into steam 4 Burning of coal

NTS,

1 14715

The rate of chemical reaction does not depend upon 1 Concentration 2 Catalyst 3 Temperature 4 Pressure

 1 12927

Reaction of alcohol, with a carboxylic acid is known as 1 Substitution Reaction 2 Addition reaction 3 Esterification 4 Hydrogenation

 1 3642

Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO

 1 3650

Which of the following reactions is used for increasing the number of carbon atoms in a chain? 1 Substitution reaction 2 Wurtz reaction 3 Friedel – Crafts reaction 4 Cannizzaro’s reaction

 2 4546



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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.

3458