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Which of the following is not a constitu...

Which of the following is not a constituent of Portland cement?

A

`SiO_2`

B

`Li_2O`

C

`CaO`

D

`Al_2O_3`

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AAKASH INSTITUTE-TEST 5-EXAMPLE
  1. The incorrect decomposition reaction among the following is -

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  2. The calcium hypochlorite is -

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  3. Which of the following is not a constituent of Portland cement?

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  4. In Solvay process, during the formation of sodium carbonate, ammonia i...

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  5. Beryllium hydroxide reacts with alkali to form -

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  6. The incorrect statement for alkaline earth metals is -

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  7. The pair of metals which do not impart colour in flame test is

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  8. For alkail metal having elctronic configuration [Xe]6s1 , the correct ...

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  9. Select the correct statement regarding borax -

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  10. A compound 'A' when reacts with LiAlH4 it gives two compounds B and C ...

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  11. The formula of phosphide of alkail metal (M) is -

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  12. Orthoboric acid is a monobasic acid because -

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  13. The stability of +2 oxidation state among Si, Ge, Sn and Pb is -

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  14. (Sio3)n^(2n-)can represent- (a) Cyclic silicates ,(b) Chain silicates ...

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  15. Producer gas is a mixture of

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  16. Which of the following is most covalent carbide?

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  17. With respect to graphite and diamond, the incorrect statement is -

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  18. Which of the following is not isostuctural with SiCl4 ?

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  19. when sodium metal reacts with NH3 at high temprature, it gives a salt ...

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  20. Chalcopyrite is an ore of -

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