General Science MCQ-37


Match List I with List II.
List I (Mixture) List II (Type of Mixture)
A. Copper Sulphate Water 1. Suspension
B. Wheat-Water 2. Colloid
C. Ink-Water 3. Solution


Brass is an alloy. Its components (quantity wise) are as follows:-


Consider the following: Liquid Nitrogen is used
1. as a refrigerant for freezing foods.
2. to store living cells and important tissues.
3. during skin grafting in burn victims and for in vitro fertilization (test tube babies).
Choose the correct options:


Match List I with List II.
List-I List-II
A. Carbon monoxide -1. It is a colorless, odourless gas that is produced by the incomplete burning of fuels, such as petrol, diesel, coal and, wood.
B. Carbon dioxide-2. It is emitted as a result of human activities, such as the burning of wood, coal, oil and natural gas.
C. Suspended particulate matter- 3. It consists of solid particles in the air in the form of smoke, dust and vapour.
D. Chlorofluorocarbons -4. It is generally un reactive but it can diffuse into the stratosphere, where it break down under the influence of ultraviolet rays.


Consider the following statements:
1. Acid rain is the rain, which has been made more acidic than normal by the presence of dissolved pollutants, such as sulphur dioxide (SO2) and nitrogen oxides.
2. Acid rain contains mainly nitric and sulphuric acids that are formed by the dissolution of nitrogen oxides and sulphur dioxide in air.
The correct statement/s out of the above is/are:


‘Centrifugation’ technique is used to separate the particles of:


Which of the following statements is not true about a colloid?


Which of the following method is used to separate different gases from air?


Which of the following is not a metal?


The main causes of the greenhouse effect are the greenhouse gases, which includes:


Which of the following held that matter was continuous and hence could be divided into smaller and smaller particles?


Consider the following regarding Dalton’s atomic theory:
1. Atoms cannot be created, destroyed, sub divided or converted to that of another element.
2. All atoms of a particular element are identical in mass and properties.
3. Atoms of different elements have different masses and properties.
4. Atoms does not combine in simple whole-number ratios.
Which of the above were the main points of Dalton’s atomic theory?


The number of elements found in gaseous and liquid state at room temperature are respectively:


The speed of a body becomes thrice. How many times its kinetic energy increase?


Which of the following is not a biatomic molecule?
1. Oxygen
2. Chlorine
3. Phosphorus
4. Sulphur
Choose the correct options:


The ratio of mass of nitrogen & hydrogen in ammonia is :


Who presented the nuclear model of atom first?


Consider the following statements:
1. The number of protons in the nucleus of an atom of a given element is called the atomic number of that element.
2. Massnumber of an atom is defined as the sum of number of protons and neutrons present in the nucleus of an atom.
3. Atoms of an element that have the same atomic number (Z) but different mass number (A) are called isotopes.
Which of the above statements is incorrectly stated?


Match List I with List II.
List I(Name of Compound) — List II (Common Name)
A. Sodium Chlorine 1. Vinegar
B. Acetic Acid 2. Baking Soda
C. Calcium Carbonate 3. Table Salt
D. Sodium bicarbonate 4. Limestone


Consider the following gases:
1. Nitrogen
2. Oxygen
3. Chlorine
Which of the above gases are obtained by fractional distillation of liquefied air?