Chemistry

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This is a timed quiz. You will be given 1200 seconds to answer all questions. Are you ready?

1200

For which of the following compounds the term empirical formula cannot be applied ?

Correct! Wrong!

Percentage of calcium in calcium carbonate is___________________?

Correct! Wrong!

Which one of the following is not the mono isotopic element ?

Correct! Wrong!

Covalent network crystals have_____________?

Correct! Wrong!

Which of the following is not a macromolecule ?

Correct! Wrong!

Which of the following statements about isotopes is correct ?

Correct! Wrong!

Avogadros number may represent_________________?

Correct! Wrong!

The number of peaks obtained in mass spectrometry shows____________________?

Correct! Wrong!

Which of the following terms is not used for ionic compound ?

Correct! Wrong!

Diameter of an atom is in the order of________________?

Correct! Wrong!

Which of the following are isoelectronic species ?

Correct! Wrong!

All of the following substances are crystalline except_____________?

Correct! Wrong!

When cationic molecular ions are allowed to pass through strong magnetic field in mass spectrometer which of the following ions is fallen__________________?

Correct! Wrong!

Molecular ions are formed by passing______________________?

Correct! Wrong!

What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called?

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The mass of decimole of electrons (NA) is___________________?

Correct! Wrong!

The number of moles of CO2 which contains 16 g of oxygen is__________________?

Correct! Wrong!

Isotopes of the same elements has__________________?

Correct! Wrong!

Which one is true about isotope ?

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Mass spectrometer is used to determine Mass number of isotopes and___________________?

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Which of the following terms is used for the mass of chlorine 35.5 ?

Correct! Wrong!

One mole of CO2 contains?

Correct! Wrong!

Molecular mass of water (18g) means__________________?

Correct! Wrong!

Size of molecule depends upon________________?

Correct! Wrong!

Empirical formula of chloroform is____________________?

Correct! Wrong!

Electron was discovered by?

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The soul of chemistry is dealing with___________?

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How many isotopes have odd atomic number ?

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The sample of isotopes of an element which needs not to be vaporized in the vaporization chamer_________________?

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Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?

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The properties of an element mosly corresponds to that isotope which has greater_________________?

Correct! Wrong!

1 a.m.u =__________________?

Correct! Wrong!

The volume occupied by 2.8 g of N2 at STP______________________?

Correct! Wrong!

Which of the following is a substance?

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The number of isotopes of elements with even mass number and even atomic number are ________________?

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The radioactive isotope of hydrogen is called___________?

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Which one of the following has the maximum number of isotopes ?

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Which of the following ion formation is always exothermic ?

Correct! Wrong!

moles of each aluminium and oxygen react with each other to produce aluminium oxide. The amount of product formed is______________________?

Correct! Wrong!

Sodium carbonate is produced by____________?

Correct! Wrong!

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