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Chemistry Chapter 1
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a. Molar mass usually expressed in grams. Which one of the following is molar mass of O2 in amu?
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b. Which one of the following is not a triatomic molecule?
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c. Elements are mostly found as:
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d. Molecular mass of nitric acid HNO3 is:
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e. Empirical formula of glucose is:
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f. How compounds are formed in industrial chemistry?
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g. Isotope C-12 is found in quantity:
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h. The example of homogeneous mixture is:
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i. Mass number of hydrogen is:
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j. The percentage quantity of oxygen in human body is:
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k. Which of the following pair of elements has equal mass?
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l. Empirical formula of benzene is:
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m. The valency of boron is:
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n. Formula of calcium oxide is:
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o. The mass of electron is equal to:
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p. Empirical formula of hydrogen per oxide is:
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q.
The symbol of Avogadro’s number is
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r. Which one of the following can be separated by physical means?
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s. The valency of iron in ferric sulphate Fe2(SO4)3 is:
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t. The formula mass of potassium sulphate (K2SO4) is:
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u. The quantity of nitrogen by weight on Earth’s crust is:
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v. Atomic number of oxygen is:
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w. Molecular mass of phosphoric acid (H3PO4) is:
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x. The lightest element is:
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y. The element occurring in the form of liquid is:
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z. Atomic mass number of an element is represented as:
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aa. Element found in gaseous state is:
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ab. The number of naturally occurring elements is:
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ac. All are tri atomic molecules except:
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ad. Atomic number of sodium is:
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ae. At room temperature, ……… is found in liquid form:
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af. Molecular formula of glucose is:
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ag. Formula of washing soda is:
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ah. The percentage of nitrogen in air is:
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ai. Molecular mass of CO2 is:
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aj. Sea water is a source of how many naturally occurring elements?
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ak. .……… is formed with the removal of an electron from an atom:
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al. Molecular mass of benzene is:
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am. Gram atomic mass of hydrogen is:
Your score is
The average score is 11%
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Physics Chapter 1
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A. The branch of physics which deals with study of motion of objects, is called:
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B. One meter is equal to:
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C. The number of base units in SI are:
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D. Significant figures in an expression are:
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E. The basic quantity is:
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F. The least count of a digital Vernier Callipers is:
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G. One liter is equal to:
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H. A student claimed the diameter of a wire as 1.032cm using Vernier Callipers. Upto what extent do you agree with it?
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I. One micro meter is equal to:
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J. An interval of 200 micro seconds is equivalent to:
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K. Which one of the following is the smallest quantity?
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L. A student noted the thickness of a glass sheet using a screw guage. On the main scale, it reads 3 divisions while 8th division on the circular scale coincides with index line. Its thickness is:
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M. 0.027 has significant figures:
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N. The word “science” is derived from:
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O. One pico meter is equal to:
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P. The least count of meter rule is:
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Q. Which one of the following is not a derived unit?
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R. The number of significant figures in 0.00580 is:
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S. The study of internal structure of Earth is called:
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T. Identify the base quantity:
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U. Kilogram is a:
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V. One tera is equal to:
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W. Which instrument is most suitable to measure the internal diameter of a test tube?
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X. The length of a meter rule is:
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Y. One millimeter is equal to:
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Z. One Mega meter is equal to:
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AA. One cubic meter is equal to:
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AB. The least count of a Vernier Callipers is:
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AC. One Giga gram is equal to:
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AD. One Femto is equal to:
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AE. Amount of a substance in terms of numbers is measured in:
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AF. One liter is equal to ……… milliliters:
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AG. A measuring cylinder is used to measure:
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AH. The unit of density in system international is:
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AI. Refrigerator is based on the principles of:
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AJ. The number of basic units are:
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AK. The least count of a screw gauge is:
The average score is 21%
Pakstudy 1
1 / 10
سرسید احمد خان نے سب سے پہلے قومی نظریے کی اصطلاح کہاں استعمال کی۔
2 / 10
نامی کتابچہ شائع ہوا۔Now or Never
3 / 10
اسلام ایک مکمل ضابطہ ہے۔
4 / 10
اسلام میں اقتدار اعلٰی کا مالک کون ہے؟
5 / 10
جنگ آزادی کب لڑی گئی؟
6 / 10
اُردو ہندی تنازعہ کب شروع ہوا؟
7 / 10
اسلام کا پہلا رکن کیا ہے؟
8 / 10
اسلام کا چوتھا رکن ہے۔
9 / 10
کتابچہ کس نے شائع کروایا۔Now or Never
10 / 10
اسلام کا پانچواں رکن ہے۔
The average score is 60%
