Welcome to your Science Quiz 30
1.
Assertion (A): Cellulose is used in making shatter-proof glass. Reason (R): Polysaccharides are not soluble in water. [2006]
2.
Which are the materials generally employed as solder in soldering operation in electronics? [2006]
3.
Consider the following statements:
- During the process of osmosis, the solvent travels from the concentrated solution to the dilute solution.
- In the reverse osmosis, external pressure is applied to the dilute solution.Â
Which of the statements is/are correct? [2005]
4.
Assertion (A): The main constituent of Liquefied Petroleum Gas is methane. Reason (R): Methane can be used directly for burning in homes and factories where it can be supplied through pipelines. [2005]
5.
Consider the following statements: [2005]
- Liquefied Natural Gas (LNG) is liquefied under extremely cold temperatures and high pressure to facilitate storage or transportation in specially designed vessels.Â
- The first LNG terminal in India was built in Hassan.Â
- Natural Gas Liquids (NGL) are separated from LPG, and these include ethane, propane, butane, and natural gasoline.Â
Which of the statements is/are correct?
6.
Which one of the following is the correct sequence of the given substances in the decreasing order of their densities? [2005]
7.
Consider the following statements: [2005]
- Anhydrous sodium carbonate is commonly known as baking soda.Â
- Baking soda is used in fire extinguishers.Â
- Bleaching powder is manufactured in the Hasenclever plant.Â
Which of the statements is/are correct?
8.
Consider the following statements: [2004]
- Baking soda is used in fire extinguishers.Â
- Quicklime is used in the manufacture of glass.Â
- Gypsum is used in the manufacture of Plaster of Paris.Â
Which of the statements given above is/are correct?
9.
Match List-I (Fuel Gases) with List-II (Major Constituents) and select the correct answer using the codes given below the Lists: [2004]
List-I
- CNG
- Coal Gas
- LPG
- Water Gas
List-II
- Carbon monoxide, Hydrogen
- Butane, Propane
- Methane, Ethane
- Hydrogen, Methane, Carbon monoxide
Choose the correct match for A, B, C and D
10.
Salts of which of the following elements provide colours to fireworks? [2004]
