StudentAidUnit 12: Empirical Data Collection and Analysis — Mcqs
9th Class Chemistry · Unit 12: Empirical Data Collection and Analysis
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1.Which of the following pairs of quantities may be measured in the same unit?
2.In which unit we usually measure the energy present in the food?
- a Kilojoules
- b Mega joules
- c Calorie
- d Joule
3.What prefix is used for 10^-12?
4.In SI unit of pressure is expressed in:
- a Newton per meter
- b Newton per meter square
- c Joule
- d Pascal
5.Which symbol is used for kilogram in SI units?
6.What does a mole represent?
7.Which unit of volume should usually be used in chemistry?
- a Milliliter
- b Liter
- c Cubic centimeter
- d Cubicmeter
8.Express 0.00840 in scientific notation:
9.In SI units prefix Nano me equal to:
10.65°C is equivalent to:
11.To change SI units by factors of ten into smaller or bigger units they use:
12.The standard form of 380000000000 is:
- a 3.8 x 10^8
- b 3.8 x 10^9
- c 3.8 x 10^10
- d 3.8 x 10^11
13.The standard form of 0.00000000034 is:
14.The eleventh general conference was held in Paris in:
15.The number 0.00580 in scientific notation is:
16.An interval of 200 ps equivalent to:
17.What is the volume of the liquid in this graduated cylinder?
- a 23
- b 24
- c 25
- d 22
18.How many cubic centimeters (cm^3) are there in 1 decimeter cube (1 dm^3):
19.A distance of 1 kilometer means?
20.In SI, the unit of mass is:
21.The number of base units in SI are:
22.Which one of the following unit is not a derived unit?
23.Amount of a substance in terms of numbers is measured in:
24.Which one of the following is the smallest quantity?
25.A measuring cylinder is used to measure.
26.1micro(μ) =
27.One cubic meter is equal to.
28.The base quantity is:
29.The scientific notation of number 0.00235 is expressed as:
30.One tera is equal to:
31.The property of a measuring instrument to give the output very close to the actual value is termed as:
32.In the measuring instruments, the degree of conformity and closeness to the true value is known as: