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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-SOME BASIC PRINCIPLES OF CHEMISTRY-Exercise
- The number of atoms in 4.25 g NH(3) is approximately:
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- In the reaction, 4NH(3)(g)+5O(2)(g) rarr 4NO(g)+6H(2)O(g), when 1 mole...
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- Haemoglobin contains 0.33% of iron by weight. The molecular weight of ...
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- Given the number: 161 cm, 0.161 cm, 0.0161 cm. The number of significa...
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- If 0.24 g of a volatile liquid upon vaporization gives 45 ml of vapors...
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- Liquid benzene C(6)H(6)) burns in oxygen according to the equation, 2...
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- The number of moles of oxygen in 1 L of air containing 21% oxygen by v...
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- The percentage weight of Zn in white vitriol [ZnSO(4)*7H(2)O] is appro...
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- If N(A) is Avogadro's number then number of valence electrons in 4.2 g...
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- In the final answer of the expression ((29.2-20.2)(1.79xx10^(5)))/1.37...
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- The number of gram molecules of oxygen in 6.02 xx 10^(24) CO molecules...
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- The number of oxygen atoms in 4.4 of CO(2) is
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- Boron has two stable isotopes, .^(10)B(19%) and .^(11)B(81%). The atom...
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- If 1L of O(2) at 15^(@)C and 750 mm pressure contains N molecules, the...
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- Ratio of C(p) and C(v) of a gas X is 1.4, the number of atom of the ga...
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- A metal oxide has the formula Z(2)O(3) . It can be reduced by hydrogen...
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- What is the weight of oxygen required for the complete combustion of 2...
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- One litre hard water contains 12.00 mg Mg^(2+) millieqivalent of washi...
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- I cc N(2)O at NTP contains
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- At STP , the density of C Cl(4) vapour in g/L will be nearest to
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