General Science - Chemistry MCQ's




All Questions are from Year - 2018 or older

Question 151 :
Which of the following is used as filler in tyre of rubber ?

  1. Carbon black
  2. Coal
  3. Coke
  4. Graphite
  

Question 152 :
What is the maximum Water Vapour content in the atmosphere?

  1. 2 to 3 per cent
  2. 3 to 4 per cent
  3. 4 to 5 per cent
  4. 5 to 6 per cent
  

Question 153 :
The constituents of automobile exhaust that can cause cancer is are :

  1. Oxides of nitrogen
  2. Carbon monoxide
  3. Polycyclic hydrocarbons y
  4. Lead
  

Question 154 :
Bakelite is a copolymer of Phenol and

  1. Formaldehyde
  2. Acetaldehyde
  3. Benzaldehyde
  4. Cinnaldehyde
  

Question 155 :
Which mineral is the ore Of aluminium?

  1. Haematite
  2. Bauxite
  3. Magnetite
  4. Siderite
  

Question 156 :
Bronze is an alloy of

  1. Copper and Zinc
  2. Tin and Zinc
  3. Copper and Tin
  4. Iron and Zinc.
  

Question 157 :
An electric iron has a heating element made of:

  1. Copper
  2. Tungsten
  3. Nichrome
  4. Zinc Technical
  

Question 158 :
Which variety of coal contains recognizable traces of the original plant material ?

  1. Anthracite
  2. Lignite
  3. Peat
  4. Bitumen
  

Question 159 :
Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights electric shavers etc.?

  1. Iron and cadmium
  2. Nickel and cadmium
  3. Lead peroxide and lead
  4. Zinc and carbon
  

Question 160 :
The drugMarijuanais a

  1. sedative
  2. mental stimulant
  3. hallucinating substance
  4. tranquillizer
  

Question 161 :
Denatured spirit is ethanol mixed with

  1. Petrol
  2. Kerosene
  3. Water
  4. Pyridine
  

Question 162 :
Which among the following elements is found in maximum percentage in the human body ?

  1. Carbon
  2. Hydrogen
  3. Nitrogen
  4. Oxygen
  

Question 163 :
Helium gas is filled in ballons because

  1. its atomic number is 2
  2. it is lighter than air
  3. it is one of the constituents of water
  4. it is a noble gas
  

Question 164 :
When there are two electrons in the same orbital they have:

  1. same spin
  2. opposite spin
  3. same or opposite spin
  4. no spin
  

Question 165 :
What are the major pollutants of cigarette smoke?

  1. Carbon monoxide and dioxin
  2. Carbon monoxide and nicotine
  3. Carbon monoxide and benzene
  4. Dioxin and benzene
  

Question 166 :
The element with highest first ionisation energy is

  1. hydrogen
  2. helium
  3. lithium
  4. sodium
  

Question 167 :
Who developed Hydrogen Bomb?

  1. Werner Von Braun
  2. J. Robert Oppen Heimer
  3. Edward Teller
  4. Samuel Cohen
  

Question 168 :
The wire of flash bulb is made of:

  1. Copper
  2. Barium
  3. Magnesium
  4. Silver
  

Question 169 :
Which of the following gases will effuse out of football bladder most quickly?

  1. He
  2. H2
  3. N2
  4. 02
  

Question 170 :
Domestic cooking gas consists mostly of

  1. methane and ethane
  2. liquefied butane and isobutane
  3. hydrogen and acetylene
  4. ethylene and carbon monoxide.
  

Question 171 :
Litmus is obtained from

  1. a bacterium
  2. a fungus
  3. an algae
  4. lichen
  

Question 172 :
Carbon dioxide is

  1. a reducing agent
  2. an oxidising agent
  3. a dehydrating agent
  4. a bleaching agent
  

Question 173 :
Cement is usually a mixture of

  1. Calcium silicate and calcium aluminate
  2. Calcium silicate and calcium ferrate.
  3. Calcium aluminate and calcium ferrate
  4. Lime stone and silicon dioxide
  

Question 174 :
Identify the metal which is nontoxic in nature

  1. Chromium
  2. Gold
  3. Cadmium
  4. Cobalt
  

Question 175 :
The major constituent of air is

  1. nitrogen
  2. carbon dioxide
  3. oxygen
  4. hydrogen
  

Question 176 :
Which one of the following is used as preservative for foodstuff ?

  1. Sodium Benzoate
  2. Picric acid
  3. Glycerine
  4. Sodium Chloride
  

Question 177 :
What is the element that is in the highest percentage in the composition of the earth ?

  1. Silicon
  2. Oxygen
  3. Magnesium
  4. Iron
  

Question 178 :
Which among the following coal contains 90 per cent of carbon?

  1. Anthracite
  2. Bitumen
  3. Lignite
  4. Peat
  

Question 179 :
Quartz is made of

  1. Calcium Sulphate
  2. Calcium Silicate
  3. Sodium Sulphate
  4. Sodium Silicate
  

Question 180 :
By which organic compound all the oils arc known ?

  1. Carbohydrate
  2. Protein
  3. Hydrocarbon
  4. Ester
  
Pages