Brass is an alloy of 1 Nickel and copper 2 Zinc and copper 3 Nickel and zinc 4 Nickel and silver
1 3155Of the following metals which, one pollutes the air of a big city? 1 Copper 2 Chromium 3 Lead 4 Cadmium
HCL, High Court, SSC,
3 15050The element required for solar energy conversion is 1 Beryllium 2 Silicon 3 Tantalum 4 Ultra pure carbon
SSC,
2 6782Water is a compound because 1 It exists as a solid, a liquid or a gas 2 It contains hydrogen and oxygen 3 It contains two different elements joined by chemical bonds 4 It cannot be split up into simpler substances by chemical means
1 8733The element nickel is a 1 Magnetic metal 2 Radioactive metal 3 Non magnetic metal 4 Complex element
1 2875Potassium permanganate is used for purifying drinking water, because 1 It is dissolves the impurities of water 2 It is a sterilizing agent 3 It is an oxidizing agent 4 It is a reducing agent
3 8832Graphite and sillimanite are 1 Refractory minerals 2 Ferrous minerals 3 Base minerals 4 None of these
1 8981The presence of which of the following salts in water causes corrosion in steam boilers? 1 Sodium chloride 2 Magnesium chloride 3 Calcium bicarbonate 4 Potassium bicarbonate
1 5250When an iron nail gets rusted, iron oxide is formed 1 Without any change in the weight of the nail 2 With increase in the weight of the nail 3 With decrease in the weight of the nail 4 None of these
1 7450Water is a good solvent of ionic salts because 1 It has no colour 2 It has a high boiling point 3 It has a high dipole moment 4 It has a high specific heat
1 4185Actinides are the elements with atomic numbers from 1 36 to 43 2 89 to 103 3 97 to 114 4 101 to 115
1 3111Post New General Science Questions
What are the important factors of cosmic rays?
I am a student of class 12. PCMB group. I am not getting admission in any of the medical colleges. And I am not good at math. So what are the options available for me????
The country helped in arihant’s built?
What are luminous irregular nebulae?
first aid to person affected with electrical shock
Who discovered radio telescope?
When did the most luminous nova appear?
Dear Sir I have got through cable size calculation 10 sq mm cable size of one panel, how i be sure that used cable is 10sqmm. a) By measuring each strand of cpper & multilpy by pye and so on...... or By measuring any one cable core with insulation only.
what are advantages of excess populatoin?
Which are the units of functioning in vssc?
Which scientist made detailed study on novae?
The year in which magnetic observations were started in mumbai and thiruvananthapuram?
In which year the solar observatory in kodikanal founded?
Science as a social endeavor .Explain
if appointed at aryabhatt school for how long should we expect you work with us
