A) Cathode rays are negatively charged particles |
B) Cathode rays are produced from all the gases |
C) Electrons are basic constituents of all the atoms |
D) Hydrogen ions do not contain any proton |
D) Hydrogen ions do not contain any proton |
1). \( \Large NaOH + HCL -> NaCl + H_{2}O \) In the above chemical reaction ;
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2). Which element forms the highest number of compounds in the periodic table ?
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3). Dirty cloths containing grease and oil stains are cleaned by adding detergents to water. Stains are removed because detergent :
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4). Motion of an oscillating liquid column in a U-tube 1s :
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5). A ray of white light strikes the surface of an object. If all the colours are reflected the surface would appear:
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6). Magnetic, electrostatic and gravitational forces come under the category of
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7). Dispersion process forms spectrum due to white light falling on a prism. The light wave with, shortest wavelength :
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8). The main source of energy in Sun is:
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9). A liquid initially contracts when cooled down to 4 degree C but on further cooling down to 0 degree C, it expands. The liquid is :
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10). Which one among the following may be considered a reason for India having 'high dependency' ratio ?
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