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The exact composition of brass is...

The exact composition of brass is

A

`Cu=80%, Zn=20%`

B

`Cu=90%, Zn=10%`

C

`Cu=80%, Sn=20%`

D

`Cu=80%, Sn=10%,Zn=10%`

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The correct Answer is:
A
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 23-Paper-1(PHYSICS & CHEMISTRY)
  1. H-underset(O)underset(||)(C)-(CH(2))(4)COOH

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  2. A starting material required for the manufacture of nulon 66 is

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  3. The exact composition of brass is

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  4. If for the reaction A to B" rate" =-(d[A])/(dt)=2(d[B])/(dt) then, rat...

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  5. Acetaldimine intermediate in the above sequence can also be obtained b...

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  6. The correct order of ionic radii Y^(3+) , La^(3+) , Eu^(3+) and Lu^(3+...

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  7. The commonly used analgesic that does not lead to addiction is

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  8. Which of the following set of properties belong to PCI(5)?

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  9. The most that does not give the borax bead test

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  10. CH(3)CH(2)-underset(O)underset(||)(C)-underset(CH(3))underset(|)(OCH)-...

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  11. The triglycerides of which of the following unsaturated fatty acids ar...

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  12. The units of constants a in van der Waal's equation is

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  13. "Sodium phenoxide" underset("pressure")overset(CO(2))to A overset(H(3)...

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  14. CH-= -= CH+HBr to X, product X is

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  15. Sodium phenoxide reacts with CO(2) at 400 K and 4.7 atm pressure to gi...

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  16. Propene on hydration gives

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  17. S(N)1 reaction is feasible in

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  18. Ethyl ethanoate on reacting with excess of CH(3)MgBr will give

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  19. When acetaldehyde is heated with Fehling's solution it gives a precipi...

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  20. An alkaloid contains 17.28% of nitrogen and it's molecular mass is 162...

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