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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE-MAIN 2021
An electric bulb of 500 watt at 100 volt is used in a circuit having a 200 V supply. Calculate the resistance R to be...
JEE Main Physics Easy
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Q JEE MAIN 2021
$\mathrm{Cu}^{2+}$ salt reacts with potassium iodide to give
JEE Main Chemistry Easy
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Q JEE MAIN 2021

The given reaction can occur in the presence of :
JEE Main Chemistry Easy
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Q JEE MAIN 2021
In the given figure, the emf of the cell is 2.2 V and if internal resistance is $0.6 \Omega$. Calculate the power dissipated in the...
JEE Main Physics Easy
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Q JEE MAIN 2021
For the circuit shown, the value of current at time t = 3.2 s will be _____A.
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Q JEE MAIN 2021
Major product P of above reaction, is
JEE Main Chemistry Easy
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Q JEE-MAIN 2021
A refrigerator consumes an average 35 W power to operate between temperature –10°C to 25°C. If there is no loss of energy then how much...
JEE Main Physics Easy
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Q JEE MAIN 2021
Consider the above reaction, compound B is :
JEE Main Chemistry Easy
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Q JEE MAIN 2021

Consider the given reaction, the product 'X' is:
JEE Main Chemistry Medium
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Q JEE-MAIN 2021
A transmitting antenna at top of a tower has a height of 50 m and the height of receiving antenna is 80 m. What is...
JEE Main Physics Easy
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