Friday, 21 April 2017


1Which has the least penetrating power?Alpha particles
2Which land mark in medical history was the first to take place?Plastic surgery
3Most of the explosions in mines occur due to the mixing of things?Oxygen with acetylene
4Which metal causes Itai-itai disease?Cadmium
5Glass is made of the mixture of which things?Sand and silicates
6Which is the chief characteristic of wet and dry tropics?Constant heating
7What is a graph is plotted taking °C along the Y-axis and of K along the X-axis?Straight line
8Acetyl salicylic acid is commonly used as which medicine?A pain killer
9The electron emitted in beta radiation originates from where?Inner orbits of atoms
10Which chemically inactive gas present in the atmosphere?Argon
11By whom was the absolute value of charge on electron determined?R.A. Millikan
12From which the cathode ray particles originate in a discharge tube?Cathode
13Which element has two electrons in the K-shell only?Helium
14Major part of CO2 is transported to respiratory surface in form of which ion?HCO3 ion
15Which type of isomerism is shown by diethyl ether and methyl propyl ether?Metamerism
16Which allotrope of the carbon is used in cutting and drilling?Diamond
17In certain amino acids, which elements is found in addition to carbon, hydrogen, nitrogen and oxygen? 65292Sulphur
18Which substance coated on plastic tape?Iron oxide
19Which is the cloud that is dark-grey or black, found at very low height and brings the real rain?Nimbostratus
20X210 has half life of 5 day. What is the time taken for seven-eights of sample of X210 to decay?15 days
21A gas is found to have the formula (CO)n. Its vapour density is 70. What must the value of n be?5
22What are Alpha rays emitted from a radioactive substance? 72 0Helium nuclear
23Which is used in beauty parlours for' hair setting?Sulphur
24Which gas is most predominant in the Sun?Hydrogen
25Which is the lightest gas?Hydrogen
26When Metal carbonate reacts with dilute acids, what does it forms?CO2
27The element common to all the acids is known as which name?Hydrogen
28Which is the gas usually filled in the electric bulb?Nitrogen
29To whom the credit for the discovery of transuranic element goes?Seaborg
30Sodium carbonate crystals lose water molecules. What is this property called?Efflorescence
31Which gase is essential for photosynthesis process?CO2
32Acetylene is used as an anaesthetic under which name?Narcylene
33Which is responsible for red rot of sugarcane?C o l l e c t o r i c h u m falcatum
34What is the major ingredient of leather?Collagen
35Which particle has similar mass to that of the electron?Positron
36Which acid used to remove inkspots?Oxalic acid
37For pasteurisation of milk by Flash method, at which temperature is milk heated?100°C
38Which chemical is used for preserving fruit juices?Sodium benzoate
39Which metal is found in 'plaster of paris'?Calcium
40In which year did Mahatma Gandhi return to India, leaving South Africa for ever?1914
41Which radiation emitted from the sun has highest wavelength?Micro waves
42Aluminium surface are often 'anodized'. This means deposition of a layer of which oxide?Zinc oxide
43Which Scale is used for recording weather condition?Barometer
44Which chemically inactive gas present in atmosphere?Argon
45Which synthetic fibre is known as artificial silk?Rayon
46All acids contain which element?Hydrogen
47Which predominantly acts as the agent of chemical erosion of soil?Underground water
48Formation of pot holes in river beds is an example of thing?Corrosion
49Which type of glass can cut off ultraviolet rays?Crooked glass
50Which is called philosopher's wool?Zinc oxide

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