CLASS 9TH, Chemistry

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Equevalents., how to calculate equevalent mass

how to calculate equevalent mass

The velocity of hydrogen molecule, If the velocity of hydrogen molecule is ...

If the velocity of hydrogen molecule is 5x 10 4 cm sec -1   then its de-Broglie wavelength is: (1) 2 Å    (2) 4 Å    (3) 8 Å    (4)100 Å Ans:  4 Å

..EMF, proper definition plz

proper definition plz

Chemical properties of benzene - hydrocarbon, Chemical properties of benzen...

Chemical properties of benzene Because of the existence of Π - electron clouds above and below the plane benzene ring, the ring works as a source of electrons and is simply att

Explain the need for product development, Explain the Need For Product Deve...

Explain the Need For Product Development In the present market scenario of processed foods we observe that sales profile of established brand names undergo unpredictable fluct

The bond is formed between similar atoms, Which type of bond is formed betw...

Which type of bond is formed between similar atoms: (1) Ionic    (2) Covalent      (3) Coordinate               (4) Metallic Ans:  Covalent

The atomic number of an element mass number & electrons, The atomic number ...

The atomic number of an element is 35 and mass number is 81. The number of electrons in the outer most shell is: (1) 7       (2) 6         (3) 5       (4) 3 Ans: 7

Determine the architectural units of silicates, Determine the architectural...

Determine the architectural units of silicates This common architectural unit (SiO 4 4- ) of silicates is of remarkable stability. The different silicates may be classified

Atomic Mass, Need to know about atomic mass of clorine

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Electrolysis, If 8686 C of charge is passed through molten magnesium chlori...

If 8686 C of charge is passed through molten magnesium chloride, calculate the number of moles of Mg(l) produced

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