Home
Class 12
CHEMISTRY
Two samples were weighed using different...

Two samples were weighed using different balances
(i) 3.529 g (ii) 0.40 g
How would the total weight of the sample be reported ?

A

3.929 g

B

3g

C

3.9g

D

3.93 g

Text Solution

Verified by Experts

The correct Answer is:
D
`{:(3.529),(0.40),(overline(3.929)):}`
Number has two decimal places (round off to 2 decimal places )
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    MODERN PUBLICATION|Exercise MULTIPLE CHOICE QUESTION (LEVEL-III)|5 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    MODERN PUBLICATION|Exercise RECENT EXAMINATION QUESTION|15 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    MODERN PUBLICATION|Exercise RECENT EXAMINATION QUESTION|15 Videos

  • SOLUTIONS

    MODERN PUBLICATION|Exercise Recent Examination Questions|13 Videos

  • STATES OF MATTER

    MODERN PUBLICATION|Exercise RECENT EXAMINATION QUESTIONS|12 Videos

Similar Questions

Explore conceptually related problems

A piece of iron of density 7.8 xx 10^(3) kgm^(-3) and volume 10^(-4) m^(3) is fully immersed in water. Calculate (i) weight of the iron piece in air (ii) upthrust of water on the iron piece (iii) apparent weight of the iron piece in water. Given g=10ms^(-2)

The mass of a box measured by a grocer's balance is 2.30 kg. Two gold pieces of masses 20.15 g and 20.17 g are added to the box. What is (a) the total mass of the box, (b) the difference in the masses of the pieces to correct significant figures ?

A galvanic cell is set up from a zinc bar weighting 100 g and 1.0 L of 1.0 M CuSO_(4) solution. How long would the cell run assuming it delivers a steady current of 1.0 amp ?

Atoms of eight elements A, B, C, D, E, F, G and H have the same number of electronic shells but different in their outermost shells. It was found that elements A and G combine to form an ionic compound which can also be extracted from sea water. Oxides of the elements A and B are basic in nature while those of E and F are acidic. The oxide of elements D is almost neutral. Answer the following questions based on the information given here in : (i) To which group or period of the periodic table do the listed elements belong ? (ii) Which one of the eight elements is likely to be a noble gas? (iii) Which one of the eight elements would have the largest atomic radius ? (iv) Which two elements amongst these are likely to be the non-metals? (v) Which one of these eight elements is likely to be a semi-metal or metalloid ?

An impure sample of sodium chloride that weighed 0.50 g gave 0.90 g of silver choride as precipitate on treatment with excess of silver nitrate solution. Calculate the percentage purity of the sample.

A pure sample of cobalt chloride weighting 1.30 g was found to contains 0.59 g cobalt and 0.71 g chloride on quantitative analysis. What is the percentage composition of cobalt chloride?

MODERN PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY -MULTIPLE CHOICE QUESTION (LEVEL-II)
  1. Express decimal equivalent of 1/60 to three significant figures.

    Text Solution

    |

  2. The mass of a piece of paper is 0.02 g and the mass of a solid substan...

    Text Solution

    |

  3. Two samples were weighed using different balances (i) 3.529 g (ii)...

    Text Solution

    |

  4. Which of the following is not a compound ?

    Text Solution

    |

  5. Which of the following statements is not correct?

    Text Solution

    |

  6. 1.0 g of an oxide of metal M contained 0.5 g of M and 4.0 g of another...

    Text Solution

    |

  7. The molar masses of oxygen and sulphur dioxide are 32 and 64 respectiv...

    Text Solution

    |

  8. Which of the following has largest number of atoms?

    Text Solution

    |

  9. Which of the following has maximum number of molecules ?

    Text Solution

    |

  10. Two flasks A and B of equal volume contain 2 g of H2 and 2 g of N2 ...

    Text Solution

    |

  11. 2.24 L of N2 at N.T.P. contain same number of molecules as are presen...

    Text Solution

    |

  12. The number of water molecules present in a drop of water weighing 0.01...

    Text Solution

    |

  13. The number of silver atoms present in a 90% pure silver wire weighing ...

    Text Solution

    |

  14. A given sample of AlCl3 contains 6.02 xx 10^20 Al^(3+) ions. The ...

    Text Solution

    |

  15. What weight of CO(2) will contain same number of oxygen atoms as are p...

    Text Solution

    |

  16. The number of atoms in 52 u of He is:

    Text Solution

    |

  17. If one atom of hydrogen weighs 1.65 xx 10^(-24) g, then mass of one a...

    Text Solution

    |

  18. The volume of one molecule of water is (density of water = 1 g ml^(-1)...

    Text Solution

    |

  19. One mole of hydrogen peroxide (H2O2) has a mass same as that of

    Text Solution

    |

  20. 19.7 kg of gold was recovered from a smuggler. How many atoms of gold ...

    Text Solution

    |