NEET Practice Questions (MCQs) with Answers & Solutions

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What is the ratio of diffusion rate of $ 238 ^UF _6 and 235^ UF_6 $ When these gases arediffused under the same condition of temperature and pressure ?

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Molecular mass of $SO_2 gas is 4 times than CH_4 $ therefore

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What is the mass (weight) of $ 6.022 \times 10 ^ {22} $ oxygen molcules ?

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How many molecules of $50_2$ gas willbe present in 5.6 litre volume of STP ?

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Molar mass of $ CaCO_3 = 100 gm/mole, how many molecules are present in 20 gm (CaCO_3) $ ?

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For an ideal gas if pressure is (P), temperature (T) and gas constant is (R) then how many moles of gas will be available in its 10 litre volume ?

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Explanation

STP $ P_1 = 1.5 bar$ $ P_2$ = 1 $ V_1$ = 200 ml $ V_2$ = ? $ T_1 $ = 400K $ V_2 $ = 273 $ { P_1V_ 1 \over T_1 } = { P_2V_2 \over T_2 } $ $ V_2 { P_1V_1 \over T_1 } \times { T_2 \times P_2 } $ ${ 1 .5 \times 200 \times 273 \over 400 \times 1} $

At constant temperature $ 27 ^\circ C $ and pressure, 5 litre gas is raised its temperature by $1 ^\circ C$, What will be the change in its volume ?

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At 400 K temperature , pressure of 200 ml $N_2$ gas is 1.5 bar, What is its volume at STP?

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which state of matter whose the intermolecular attractive force do not exist ?

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Which word of the following does not used for states of matter ?

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