Recent questions tagged Probability-mcq

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Q: The decomposition of dimethyl ether leads to the formation of `CH_(4),H_(2),` and `CO` and the reaction rate is given by Rate `=k[CH_(3)OCH_(3)]^(3//2

The decomposition of dimethyl ether leads to the formation of CH4,H2, and CO and the reaction rate is given by ... and rate constant ? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: Mention the factors that affect the rate of a chemical reaction.

Mention the factors that affect the rate of a chemical reaction. Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: A reaction is second order with respect to a reaction. How is the rate of reaction affected if the (a) doubled, (b) reduced to `1//2`?

A reaction is second order with respect to a reaction. How is the rate of reaction affected if the (a) doubled, (b) reduced to 1/2 ? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: What is the effect of temperature on the rate constant of a reactiion ? How can this temperature effect on rate constant be represented quantitatively

What is the effect of temperature on the rate constant of a reactiion ? How can this temperature effect ... quantitatively ? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: A reaction is first order in `A` secod order in `B`: (i) write differential rate equation. (ii) How is the rate affected when the concentration of `B`

A reaction is first order in A secod order in B : (i) write differential rate equation. (ii) How is the rate ... A and B is doubled? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: Calculate the half life of a first order reaction from their rate constants given below `:` `a. 200s^(-1)`,`b. 2 mi n^(-1)`,`c.4years^(-1)`

Calculate the half life of a first order reaction from their rate constants given below : a.200s-1 ,b.2min-1 ,c.4years-1 Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: The half life for radioactive decay of `.^(14)C` is 5730 years. An archaeological artifact containing wood had only `80%` of the `.^(14)C` found in a

The half life for radioactive decay of .14C is 5730 years. An archaeological artifact containing wood had only 80% ... of the sample. Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: The rate constant for a first order reaction is `60s^(-1)`. How much time will it take to reduce the initial concentrationof the reactant to its `1//1

The rate constant for a first order reaction is 60s-1 . How much time will it take to reduce the initial ... 1/16th value ? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: During nuclear explosion, one of the products is `.^(99)Sr` with half`-` life of `28.1 `years. If `1 mug` of `.^(90)Sr` was absorbed in the bones of a

During nuclear explosion, one of the products is .99Sr with half- life of 28.1 years. If 1μg of .90Sr ... is not lost metabolically. Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: For a first order reaction, show that the time required for `99%` completion is twice the time required for the completion of `90%` of reaction.

For a first order reaction, show that the time required for 99% completion is twice the time required for the ... 90% of reaction. Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance