Gypsum is added to cement clinker to 1 Increase the tensile strength of cement 2 Bind the particles of calcium silicate 3 Decrease the rate of setting of cement 4 Facilitate the formation of colloidal gel

3 Answers  

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Caustic soda is 1 NaC1 2 Na2CO3 3 NaOH 4 NaHCO3

4 Answers  

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The dark lines in the solar spectrum are due to 1 Absorption of corresponding wavelengths by the prism used in he spectrograph 2 Destructive interference between waves of certain definite wavelengths 3 Absorption of corresponding wavelengths by the outer layers of the sun 4 None of these

1 Answers  

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Which of the following minerals has the lower numerical hardness value? 1 Talc 2 Gypsum 3 Apatite 4 Topaz

3 Answers  

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Which of the following is in liquid form at room temperature? 1 Cerium 2 Sodium 3 Francium 4 Lithium

1 Answers  

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Which synthetic fiber possesses a ‘drip-dry’ property? 1 Rayon 2 Nylon 3 Silk 4 Terylene

6 Answers  

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Which of the following is the basis of modern periodic table? 1 Atomic mass 2 Atomic number 3 Atomic size 4 Atomic volume

1 Answers  

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Study of life in outer space is called A) Endobiology B) Exobiology C) Entrobiology D) Neobiology

15 Answers   Exobiology, SSC,

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Which of the following materials are used for preparing blur-black ink? 1 Gallic acid 2 Tannic acid 3 Ferrous sulphate 4 All of these

3 Answers   IOCL,

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Using an applied force of a Newton across one meter is known as a:

4 Answers  

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What is the Botany?

3 Answers  

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In modern science, what is 'fourth dimension'?

0 Answers  

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