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Question 1 of 50
Detergents used for cleaning clothes and utensils contain:
Question 2 of 50
Radioactive disintegration of uranium ultimately results in formation of:
Question 3 of 50
Which of the following is used in making smoke bombs?
Question 4 of 50
German silver is an alloy of:
Question 5 of 50
A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be:
Question 6 of 50
Which of the following is a supercooled liquid?
Question 7 of 50
Which of the following is used to remove rust stains on cloth?
Question 8 of 50
Curd is sour due to presence of:
Question 9 of 50
Tear gas is:
Question 10 of 50
Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes?
Hydrogen peroxide is an antiseptic frequently used to clean minor cuts or disinfect surfaces. Gargling with hydrogen peroxide may help treat minor mouth irritations, such as cuts or canker sores because it is an antiseptic. In fact, many types of toothpaste and mouthwash in stores already contain this compound.
Question 11 of 50
Which one of the following is used to restore the colour of old oil paintings?
Hydrogen peroxide is a chemical compound with the formula H2O2. It is used as an oxidizer, bleaching agent, and antiseptic.
Question 12 of 50
Milk is a natural:
Question 13 of 50
A polymeric substance used to make parachute is:
Question 14 of 50
Drinking soda is:
Soda water is a carbonated drink where CO2 is dissolved in water to from carbonic acid hence it is acidic in nature.
Question 15 of 50
The cathode of a lead storage battery is made up of:
In a lead-acid battery, the cathode is made of lead dioxide, and the anode is made of metallic lead. The two electrodes are separated by an electrolyte of sulfuric acid.
Question 16 of 50
Which one of the following is radioactive?
Question 17 of 50
The acid used in lead storage cells is:
In the lead-acid storage battery, lead dioxide, lead metal, and sulfuric acid react to form lead sulfate and water; the separate processes are the oxidation of lead to lead sulfate at one electrode and the reduction of lead dioxide to lead sulfate at the other while electric charge is transported through the electrolyte by the migration of hydrogen ions.
Question 18 of 50
Alum stops bleeding in minor cuts because of:
Question 19 of 50
Tincture iodine is a solution of iodine in:
Tincture of iodine or weak iodine solution is an antiseptic. It is usually 2 to 7% elemental iodine, along with potassium iodide or sodium iodide, dissolved in a mixture of ethanol (Ethyl Alcohol) and water. Tincture solutions are characterized by the presence of alcohol.
Question 20 of 50
‘Plaster of Paris’ is made by partial dehydration of:
Question 21 of 50
Water can lie separated from alcohol water mixture by:
Question 22 of 50
Petroleum is a mixture of:
Question 23 of 50
The gas used for filling weather balloons is:
Question 24 of 50
Hydrogen is not found in atmosphere because:
The reason there is not much hydrogen in the atmosphere is because it is lighter than air, and so can easily escape the Earth’s gravity.
Question 25 of 50
Who discovered the atom bomb?
Question 26 of 50
What is the most commonly used substance in fluorescent tubes?
Question 27 of 50
What is “milk of magnesia” chemically?
Question 28 of 50
Soap is prepared by boiling caustic soda with:
Question 29 of 50
Which one of the following metals is used to galvanise iron?
Question 30 of 50
Bronze is an alloy of:
Question 31 of 50
The natural source of hydrocarbon is:
Question 32 of 50
Which of the following is chiefly present in LPG (Liquefied Petroleum Gas)?
Question 33 of 50
An element which does not react with oxygen is:
Question 34 of 50
The chemical used for destroying Fungi in water tanks is:
Question 35 of 50
Which among the following metals provides amphoteric oxide?
Question 36 of 50
Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulphuric acid?
Question 37 of 50
Which among the following is pure matter?
Question 38 of 50
Bauxite is an alloy of which of the following metals?
Question 39 of 50
Nucleus of an atom consists of:
Question 40 of 50
Galvanised iron is made by coating iron with:
Question 41 of 50
The advantage of detergents over soaps is:
Question 42 of 50
The fundamental particles present in the nucleus of an atom are:
Question 43 of 50
Bleaching action of moist sulphur dioxide is because of its:
The bleaching of Sulphur dioxide (SO2) is mainly due to its reduction property and its temporary reaction as soon as it gains the required oxygen helps to regenerate its initial property.
Question 44 of 50
The long range potential of nuclear energy in India depends on its reserves of:
Question 45 of 50
Which of the following gases will effuse out of football bladder most quickly?
Question 46 of 50
Which of the following alkali metals has highest specific heat?
Question 47 of 50
In which of the following substances all carbon atoms are quaternary in nature?