Chemistry Practice MCQs Chapter 15 Class 12


116
Created on By Ali Durrani

Chemistry Ch 15 Class 12 COMMON CHEMICAL INDUSTRIES IN PAKISTAN

1 / 35

______ is needed in thyroxine, the hormone of thyroid gland.

NTS 2012
Chemistry
Chemistry of Life
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2 / 35

1500•degree Celsius furnace temperature Is maintained at which zone?

3 / 35

Ammonium nitrate contain nitrogen

4 / 35

When hexane dioic acid is heated with hexamethylene diamine, the compound formed is:

UHS 2011
Chemistry
Industrial Chemistry
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5 / 35

In the production of wrought iron Mg, Si, and P are removed in the form of:

PMC Practice 3
Chemistry
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6 / 35

Which Organic acid is used in pulping of wood for paper?

7 / 35

What is used in cement manufacture?

8 / 35

Rayon is ____?

PMC Practice 10
Chemistry
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9 / 35

The temperature zones In rotary kilns are:

10 / 35

Which one of the following is an example of a co-polymer?

UHS 2015
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11 / 35

The macronutrients for healthy plant growth are required in per acre.

12 / 35

What is the nature of “hydrated tricalcium aluminate” (3 Ca. Al203. 6 H20) in the setting of cement?

13 / 35

Genetic mutations occur in:

NUMS 2016
Chemistry
Chemistry of Life
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14 / 35

“Zymase”- a group of 14 enzymes, used in the fermentation of starch, is present in:

NTS 2010
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15 / 35

The crude petroleum is separated in fraction by:

PMC Practice 4
Chemistry
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16 / 35

Aluminium nitrate is not used for ai

17 / 35

Which of the following is a Marco-nutrient

18 / 35

The zone where moisture is removed and clay is broken down into Al203, Si02, Fe203 is

19 / 35

Fractions of crude petroleum can be obtained by using ___________.

PMC Practice 3
Chemistry
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20 / 35

Percentage of nitrogen in urea is:

21 / 35

Which in not woody raw material

22 / 35

Identify the pair of rnicronutrients:

23 / 35

Enzymes that are functioning within the cell are called:

NUMS 2016
Chemistry
Chemistry of Life
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24 / 35

In Paper industry, sodium sulphite is buffered with

25 / 35

cr. be used as a liquid fertilizer?

26 / 35

What is the catalyst used in the Haber process?

H₂ + N₂ ⟶ NH₃

PMC 2021 Tested
Chemistry
Industrial Chemistry
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27 / 35

Which of the following is the most widely used fertilizer in Pakistan? 

28 / 35

Which one of the following is an example of a condensation polymer?

UHS 2014
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29 / 35

Which one of the following polymer is called as Nylon 6,6?

UHS 2016
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30 / 35

Which one of the following was used as one of the earliest antiseptic and disinfectants?

UHS 2015
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31 / 35

Which of the following is not a macronutrient?

32 / 35

How many grams of micronutrients are needed by 1 acre of land?

33 / 35

Among the most common disaccharides, one of the following is present in the milk?

UHS 2014
Chemistry
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34 / 35

1 calorie = ______ Joules.

NTS 2012
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35 / 35

Burning of which one of the following waste is considered as useful industrial fuel or to produce electricity

UHS 2015
Chemistry
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