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Physical Pharmacy-II

Authored by Akhila Varanasi

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University

Used 35+ times

Physical Pharmacy-II
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The half life of a first order reaction is 4 years. What is shelf life.

0.02

0.03

0.17

0.61

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In chemical kinetics the rate of reaction is expressed as (-dc/dt) where dc, refers to which concentration?

Catalyst

Product

Reactant

Solvent medium

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In a second order reaction a=b. 20% of the reaction is completed in 500 seconds.calculate the time required for reaction to complete 60%.

300 sec

100sec

4000sec

50sec

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The integral equation for a reaction K=X/at.x/(a-x) is concerned with the order.

First

Pseudo first

Second

Zero

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

In the photochemical degradation of multisulphapreparation the order that a reaction does follow is

First

Pseudo first

Second

Zero

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the degradation studies of aspirin suspension the orders observed initially and at the end

First, second

First,zero

Second,first

Zero, first

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In reactions that follow 1st order kinetics,half life is expressed by equation.

0.693/k1

0.301/k1

0.105/k1

K1/0.693

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