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DINESH PUBLICATION-ATOMS AND MOLECULES-TEST YOUR KNOWLEDGE (VERY SHORT ANSWER QUESTIONS)
- Write the symbol of the following of elements (i) Boron (ii) Bismuth ...
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- The formula of a compound is Ca(3)(PO(4))(2). What is the valency of C...
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- Which is used as the standard for comparing the atomic and molecular m...
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- What is the value of Avogadro's number of particles?
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- What does N.T.P. represent?
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- What is the molar mass of a gas or vapours under N.T.P. conditions?
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- Identify the cation and anion in the molecular formula of potassium su...
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- Give the formula of the compound formed by combinning Fe^(2+) and Cl^(...
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- Give one example each of polyatomic element and polyatomic ion
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- Define the term mol
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- What do the following denote (i)N (ii) Na(2)?
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- Write the chemical formulae of () sodium carbonate (ii) calcium sulpha...
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- Explain gram atomic mass in terms of mole concept.
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- Why do mixtures not obey the law of constant composition?
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- What do we call the particles which have less electrons than the norma...
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- What is the valency of PO(4) in the compound Ca(3)(PO(4))(2)
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- Calculate the molar mass of sulphuric acid (H(2)SO(4)).
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- What is atomicity? Give one example of each of diatomic and triatomic ...
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- An element B show valencies of 4 and 6. Write the formulae of its two...
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- How many atoms are there in 0.25 mole of hydrogen ?
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