Home
Class 11
CHEMISTRY
Convert the followingn into basic units:...

Convert the followingn into basic units: (1) 28.7 pm
(2) 15.15 pm
(3) 25365 mg

Text Solution

Verified by Experts

(1) 28.7 pm`xx(10^(-12)m)/(1" pm")=2.87xx10^(-11)`m
(2) 15.15pm`xx(10^(-12))/(1" pm")=1.515xx10^(-11)m`
(3) 25365mg`xx(1g)/(1000mg)xx(1kg)/(1000g)=2.5365xx10^(-2)kg`
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    CHHAYA PUBLICATION|Exercise HIGHER THINKING SKILLS (HOTS) QUESTIONS|19 Videos
  • SOME BASIC CONCEPTS OF CHEMISTRY

    CHHAYA PUBLICATION|Exercise ENTRANCE QUESTION BANK|46 Videos
  • SOME BASIC CONCEPTS OF CHEMISTRY

    CHHAYA PUBLICATION|Exercise SOLVED WBCHSE SCANNER|28 Videos
  • s-BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTICE SET|16 Videos
  • STATES OF MATTER : GASES AND LIQUIDS

    CHHAYA PUBLICATION|Exercise PRACTICE SET|10 Videos

Similar Questions

Explore conceptually related problems

Look at the following pattern : (i) 28 = 2^(2) xx 7^1 , Total number of factors (2+1) (1+1)= 3 xx 2 =6 28 is divisible by 6 factors i.e., 1,2,4,7,14,28 (ii) 30=2^(1) xx 3^(1) xx 5^(1) , Total number of factors ( 1+1)(1+1)(1+1)=2 xx 2 xx 2 =8 30 is divisible by 8 factor i.e., 1,2,3,5,6,10,15,30 find pattern

AB is a chord of x^2 + y^2 = 4 and P(1, 1) trisects AB. Then the length of the chord AB is (a) 1.5 units (c) 2.5 units (b) 2 units (d) 3 units

Find the sum of the following Aps, (i) 2,7,12,…..to 10 terms. (ii) -37, -33, -29 , to 12 terms (iii) 0.6, 1.7, 2.8,…… to 100 terms (iv) 1/15, 1/12, 1/10 , ………….. To 11 terms.

First and second ionisation energies of magnesium are 7.646 ev and 15.035 eV respectively what will be the amount of energy in Kj needed to convert all the atoms of magnesium into Mg^(2+) ions present in 12 mg of magnesium vapour?

Write down the electronic configurations of the following : (a) Pm^(3+) , (b) Ce^(4+) , (c ) Lu^(2+)

Arrange the following in the descending order (bigger to smaller) of their values. (v) 1.2 × 1.5, 1.2, 1.5

Let k be an integer such that the triangle with vertices (k ,-3k),(5, k) and (-k ,2) has area 28s qdot units. Then the orthocentre of this triangle is at the point : (1) (1,-3/4) (2) (2,1/2) (3) (2,-1/2) (4) (1,3/4)

Find the mode of the following numbers : 7,4,10,15,7,3,5,2,9,12

A point moves such that the area of the triangle formed by it with the points (1,5) and (3,-7) is 21 square unit, then the locus of the moving point is-

The vaIue of two resistors are (5.0 pm 0.2)k Omega and (10.0 pm 0.1)k Omega . What is the percentage error in the equivaIent resistance when they are connected in paraIIeI?

CHHAYA PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-SOLVED NCERT EXERCISE
  1. A sample of drinking water was found to be severely contaminated with ...

    Text Solution

    |

  2. Express the following in the scientific natation: (1) 0.0048 (2) 2...

    Text Solution

    |

  3. How many significant figures are present: (1) 0.0025 (2) 208 (3) 5...

    Text Solution

    |

  4. Round up the following upto three significant figures: (1) (1) 34.21...

    Text Solution

    |

  5. The following data are obtained when dinitrogen and dioxygenn react to...

    Text Solution

    |

  6. If the speed of light is 3.0xx10^(8)m*s^(-1), calculate the distance c...

    Text Solution

    |

  7. In a reaction A+B(2) to AB(2). Identify the limiting reagent, if any, ...

    Text Solution

    |

  8. N(2) and H(2) react with to produce ammonia according to the equation:...

    Text Solution

    |

  9. How are 0.5 mol Na(2)CO(3) and 0.5(M) Na(2)CO(3) different?

    Text Solution

    |

  10. If ten volumes of dihydrogen gas reacts with five volumes of dioxygen ...

    Text Solution

    |

  11. Convert the followingn into basic units: (1) 28.7 pm (2) 15.15 pm ...

    Text Solution

    |

  12. Which of the following will have largest no. of atoms? (1) 1 g Au (g...

    Text Solution

    |

  13. Calculate the molarity of a solution of ethanol in water in which the ...

    Text Solution

    |

  14. What will be the mass of one ""^(12)C atom in g?

    Text Solution

    |

  15. How many significant figures should be present in the answer of the fo...

    Text Solution

    |

  16. Use the data given in the following table to calculate the molar mass ...

    Text Solution

    |

  17. Calculate the number of atoms in each of the following (1) 52 moles of...

    Text Solution

    |

  18. A welding fuel gas contains carbonn & hydrogen only. Burning a smal sa...

    Text Solution

    |

  19. Calcium carbonate reacts with aqueous HCl to give CaCl(2) and CO(2) ac...

    Text Solution

    |

  20. Chlorine is prepared in the laboratory by treating manganese dioxide (...

    Text Solution

    |