StudentAidUnit 1: States of Matter and Phase Changes — Mcqs
9th Class Chemistry · Unit 1: States of Matter and Phase Changes
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1.Matter is present in neon signs in the state of:
2.Hazardous effects of shopping bags are studied in:
3.The man-made polymer is:
4.The crystals of which substance has rhombic shape?
5.Which liquid among the following is a colloidal solution?
6.Which of the following is a heterogeneous mixture?
7.A state of matter whose properties are between those of liquids and crystalline solids.
8.When the tiny particles of a substance are dispersed through a medium, the mixture is named as:
9.A solution of KClO₃ has a solubility of about 13.2g per 100 cm³ at 40°C. How its solubility will be affected, if you decrease the temperature?
10.You are studying the rate of hydrolysis of organic compound starch under different conditions of temperature. In which branch of chemistry this topic will fall?
What is Chemistry
11.Which branch of chemistry is the study elements and their compounds except for organic compounds?
12.Which branch of chemistry helps to protect water that has been poisoned by soil?
13.Which area of chemistry improves to gauge the behavior of pollutants and develop techniques for pollution control?
14.The branch of chemistry that helps to treat diseases and synthesize new medicines:
15.The branch of science helps to understand chemical products and processes that reduce the use of hazardous substances:
16.To identify the concentration of a particular solution through titration is and application of:
17.The batteries in our vehicles are built on the principle of electrochemistry. It is the application of:
18.The branch of chemistry that is concerned with the large-scale production of chemical substances is:
19.The branch of chemistry that focuses on the study of polymers, their types, properties, uses is called:
20.The study of the interaction between drugs and biological targets, as well as the development of new medicinal agents.
21.Which is deal with composition, structure, properties, behavior and changes of matter & energy?
22.Which branch of chemistry deals with the changes that occur in atomic nuclei?
23.Which branch of chemistry deals with elements and compounds in earth's crust?
24.Which branch of chemistry deals with the study of stars, planets, comets and interstellar space?
25.Which branch of chemistry tells us sulphuric acid is extremely corrosive to skin?
- a organic chemistry
- b physical chemistry
- c biochemistry
- d inorganic chemistry
26.Which branch of chemistry give information about starch synthesis in plants?
27.Polymers are sometimes called:
States of Matter
28.Anything that has mass and occupies space is called:
29.Following are states of matter
30.Macroscopic properties are properties that can be visualized by:
31.Matter can be described by both its:
Element, Compound and Mixture
32.A substance formed when two or more different elements combine chemically.
States of Matter
33.How many states of matter exist?
- a One
- b Two
- c Three
- d Four
34.In which state matter does not have definite shape and volume?
35.Pressure is a significant property of:
36.Which state of matter has fixed shape and volume?
37.The simplest form of matter is:
Element, Compound and Mixture
38.Building block of all matter is:
States of Matter
39.Fourth state of matter is:
Element, Compound and Mixture
40.Mixture can be separated by means of:
41.Example of heterogeneous mixture is:
42.A good example of homogeneous mixture is:
Allotropic Forms of Substances
43.Allotropes of oxygen are:
44.Graphite is __________ conductor of electricity.
45.In diamond, each C-atom is covalently bonded with __________ C-atoms.
46.Diamond is __________.
47.The structure of C-atom in diamond is __________.
48.Buckyballs also known as __________.
Solution, Colloidal Solution and Suspension
49.Which one of the following will show negligible effect of temperature on its solubility?
50.Which one of the following is heterogeneous mixture?
51.Solubility of which salt increases with the increase of temperature:
52.The solubility of which salt decreases with the increase of temperature?
53.Which one is example of colloid?
- a Jelly
- b Paints
- c Milk of magnesia
- d None of these
54.Which one is a suspension?