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JEE MAINS PREVIOUS YEAR-JEE MAINS 2021-CHEMISTRY (SECTION-B)
- An accelerated electron has a speed of 5 xx 10^6 ms^(-1) with an uncer...
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- Number of electrons present in 4f orbital of Ho^(3+) ion is . (Given ...
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- Consider the above chemical reaction. The total number of stereoisomer...
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- For a chemical reaction A to B, it was found that concentration of B i...
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- The number of significant figures in 0.00340 is .
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- Assuming that Ba(OH)2 is completely ionised in aqueous solution under ...
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- 0.8 g of an organic compound was analysed by Kjeldahl's method for the...
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- When 3.00 g of a substance 'X' is dissolved in 100 g of "CC"l4, it rai...
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- An LPG cylinder contains gas at a pressure of 300 kPa at 27^(@)C. The...
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- The density of NaOH solution is 1.2 g cm^(-3). The molality of this so...
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- CO(2) gas adsorbs on charcoal following Freundlich adsorption isotherm...
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- The conductivity of a weak acid HA of concentration 0.001 mol L^(-1) i...
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- 1.46 g of a biopolymer dissolved in a 100 mL water at 300 K exerted an...
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- An organic compound is subjected to chlorination to get compound A usi...
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- The number of geometrical isomers possible in triamminetrinitrocobalt ...
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- In gaseous triethyl amine "-C-N-C-" bond angle is degree.
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- For water at 100^(@)C and 1 bar, Delta("vap") H - Delta("vap")U = xx ...
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- PCl(5) hArr PCl(3) + Cl(3) " "K(c)= 1.844 3.0 moles of PCl(5) is i...
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- The difference between bond orders of CO and NO^(o+) is (x)/(2) where ...
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- The equilibrium constant for the reaction A (s) hArr M (s) + (1)/(2)...
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