Q116. Assertion (A): The method of dimensions analysis cannot validate the exact relationship between physical quantities in any equation.
Reason (R): It does not distinguish between the physical quantities having same dimensions eg; velocity & speed .
Reason (R): It does not distinguish between the physical quantities having same dimensions eg; velocity & speed .
Anonymous Quiz
80%
Assertion (A) is true, Reason (R) is true; Reason (R) is a correct explanation for Assertion (A).
20%
Assertion (A) is true, Reason (R) is true; Reason (R) is not correct explanation for Assertion (A).
0%
Assertion (A) is true, Reason (R) is false.
0%
both false
Q117. which one is not a limitations of dimension analysis ?
Anonymous Quiz
22%
we cant predict physical correctness
11%
it doesnt tell the nature of PQ
0%
no info about dimensional constant
67%
we can derive the equations by adding , sub , log , trigo functions
Q118. Which PQ is derived from Density and LT-¹ ?
Anonymous Quiz
33%
Pressure
33%
Volume
0%
Force
33%
Momentum
Q119. Which PQ derived from MLT-¹ divided by Time ?
Anonymous Quiz
67%
Force
11%
Pressure
11%
Denisty
11%
Momentum
Q120. What is the number of significant figures of the following numbers
7200, 80300, 803.000 , 79.00 , 8.342 , 0.000491000, 200800
7200, 80300, 803.000 , 79.00 , 8.342 , 0.000491000, 200800
Anonymous Quiz
0%
4 ,6 , 6 , 4 , 4 , 6 , 4
20%
4 , 3 , 6 , 4 , 4 , 6 , 6
10%
2 , 3 , 6 , 4 , 3 , 6 , 4
70%
2 , 3 , 6 , 4 , 4 , 6 , 4
Q121. How many significant figures are present in perimeter of square ?
Anonymous Quiz
11%
100
0%
2
22%
3
67%
infinity
Q122. Substract 0.2 from 5.27 and give significant figures?
Anonymous Quiz
56%
5.1
22%
5.0
22%
5.07
0%
5.06
Q123. Calculate number of atoms present in one line of water ( density of water is 1g/mL ) ?
Anonymous Quiz
11%
116.5 NA atoms
56%
160.5 NA atoms
33%
166.5 NA atoms
0%
106.5 NA atoms
Q124. Weight of 1L gas is 2g then find out its VD and Molecular mass?
( given density of H2 = 0.000089 )
( given density of H2 = 0.000089 )
Anonymous Quiz
18%
40.8
36%
22.4
27%
44.8
18%
None
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Q125. 11g of gas occupy 5.6 litres of volume at STP. the gas is
Anonymous Quiz
46%
CO2
31%
N2O4
15%
CO
8%
NO
Q126.
840g of MgCO3 sample ( % purity = 50% ) decomposed to give MgO + CO2 . Calculate mass of MgO and Volume of CO2 produced ?
Note : [ solution is attached with questions, attempt first by yourself ]
840g of MgCO3 sample ( % purity = 50% ) decomposed to give MgO + CO2 . Calculate mass of MgO and Volume of CO2 produced ?
Note : [ solution is attached with questions, attempt first by yourself ]
Anonymous Quiz
20%
300g and 132 L
20%
200g and 142L
40%
400g and 112 L
20%
200g and 112 L
Q127. Mol fraction of A in H20 is 0.2 Molality of A in H20 ?
Anonymous Quiz
33%
0.8
44%
13.8
17%
12.8
6%
14.8
Media is too big
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