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Three students namely A,B,C have done an...

Three students namely A,B,C have done an experiment two time invdividual, for which the correct value is 2.00g. The result are

Accurate and precise result is

A

C

B

B

C

A

D

A and B

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The correct Answer is:
A
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Three students namely A, B, C have done an experiment two times individually, for which the correct value is 2.00g. The results are given below {:(,"Experiment - 1","Experiment - 2"),("Student A",1.95,1.93),("Student B",1.94,2.05),("Student C",2.01,1.99):} Whose results are accurate and precise?

Two clocks are being tested against a standard clock located in a national laboratory. At 12:00:00 noon by the standard clock , the readings of the two clocks are : If you are doing an experiment that requires 'precision time interval' measurements, which of the two clocks will you prefer? c

Two clocks are being tested against a standard clock located in a national laboratory. At 12:00:00 noon by the standard clock, the readings of the two clocks are : If you are doing an experiment that requires 'precision time interval' measurements , which of the two clocks will you prefer ?

Electric charges of 1 mu C, 1 mu C and 2mu C are placed in air at the corners of A, B and C respectively of an equilateral triangle ABC having the length of the side 10 cm. The resultant force of C is (1/4 pi epsilon_(0) = 9 xx 10^(9) N-m^(2)/C^(2))

Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows. Use the Table above to answer the following questions about metals A, B, C and D. (i) Which is the most reactive metal? (ii) What would you observe if B is added to a solution of Copper(II) sulphate? (iii) Arrange the metals A, B, C and D in the order of decreasing reactivity.

The specific heat capacities of three liquids A, B and C are in the ratio, 1 : 2 : 3 and the masses of the liquids are in the ratio 1 : 1 : 1. The temperatures of the liquids A, B and C are 15" "^(@)C, 30" "^(@)C " and 45 "^(@)C , respectively. Then matched the resultant temperature of the mixture given in list-II with the corresponding mixture given in list-I.

AAKASH SERIES-STOICHIOMETRY-Objective Exercise -2
  1. Acetylene can be prepared from calcium carbonate by a series of reacti...

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  2. Sodium carbonate of 92% purity is used in the reation Na(2)CO(3)+CaCl(...

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  3. Liquid benzene burns in oxygen according to 2C(6)H(6)(1)+150(2)(8) to1...

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  4. Phosphine on decomposition produces phosphorus and hydrogen. When 100 ...

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  5. Number of moles of KMnO(4) required to oxidize one mole of Fe(C(2)O(4)...

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  6. 4.9 g of H2SO4 decompedes x.g of NaCl to give 5g of sodium hydrogen su...

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  7. Weight of one C(60)H(122) molecule is

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  8. If 5 ml of methane is completely burnt the volume of oxygen required a...

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  9. How many moles of acidified FeSO(4) can be completely Oxidised by one ...

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  10. A mixture of methane and ethylene in the volume ratio x : y has a tota...

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  11. One litre of a mxiture of CO and CO(2) is passed over red hot coke whe...

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  12. The atomic masses of two elements A and B are 20 and 40 respectively. ...

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  13. In the formation of Al(2)O(3) from Al and O(2), if 1.5 mole of oxygen ...

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  14. The weight of MgCO(3) required for the preparation of 12g of MgSO(4) b...

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  15. 100ml of KMnO4 salution is exactly reduced by 100ml of 0.5 M oxalic ac...

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  16. 314.000 has how many significant figures?

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  17. The nuclear cross section is measured in barn'. It is equal to

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  18. The prefix femto stands for

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  19. Three students namely A,B,C have done an experiment two time invdividu...

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  20. An iron ball has a mass of 35gms and a speed of 50m/s. If the speed ca...

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