Home
Class 7
BIOLOGY
MULTIPLE CHOICE QUESTION After doing exe...

MULTIPLE CHOICE QUESTION
After doing exercise our respiratory rate may be more than…..breaths per minute.( )

A

40

B

70

C

25

D

100

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NUTRITION IN ORGANISMS

    SRS PUBLICATION|Exercise QUESTION BANK|132 Videos

Similar Questions

Explore conceptually related problems

MULTIPLE CHOICE QUESTION Read the paragraph and answer the question. Earthworms breathe through their skin. It is thin and moist with minute holes. Through the skin, air passes in and out. What is essential for earthworm to breathe oxygen through skin continuously ? ( )

Do exercise and running affect the rate at which we breathe in and out?

Reaction of benzene with a mixture of conc. HNO_(3) and Conc H_(2)SO_(4) at about 60^(@)C give nitrobenzene. Nitration of substituted benzenes depends on the nature of the group already present in the ring. Increase of temperature may result in multiple nitration. Which of the following compounds undergo nitration at a rate faster than the other

For a spontaneous reaction, the free energy change must be negative. DeltaG=DeltaH-TDeltaS is the enthalpy change during the reaction. T is absolute temperature, and AS is the change in entropy during the reaction. Consider a reaction such as the formation ofan oxide . M+O_(2) MO Dloxygen is used wp in the course of this reaction. Gases have a more random structure (less ordered) than liquid or solids consequently gases have a higher entropy than liquids and solids, in this reaction (entropy or randomness) decreases, hence is negative. Thus, the temperature is raised the DeltaS becomes more negative. Since, TDeltaS is subtracted in the equation, then SG becomes less negative. Thus, the free energy changes increases with the increase in temperature. The free energy changes that occur when one mole of common reactant in this case dioxygen) is we may e plotted graphically against temperature for a number of reactions of metals to their oxides. The following plot is called an Ellingham diagram for metal oxide. Understanding of Ellingham diagram is extremely important for the efficient extraction of metals. As per the Ellingham diagram of oxides which of the following conclusion is true?

hydrogen-oxygen fuel cell may have an acidic or alkaline electrolyte. The half-cell reactions are To maximize the power per unit mass of an electrochemical cell, the electronic and electrolytic resistances of the cell must be minimized. Since fused salts have lower electrolytic resistances that aqueous solutions, high-temperature electrochemical cells are of special interest for practical applications. High temperature also allow the use of liquid metal electrode, which make possible higher current densities than solid electrodes If 560 mL of H_2 gas at STP is fed into and is consumed by the fuel cell in 10 minutes, then what is the current output of the fuel cell?

An orbital is designated by certain values of first three quantum numbers (n, l and m) and according to Pauli.s exclusion principle, no two electrons in a atom can have all the for quantum numbers equal. N, l and m denote size, shape and orientation of the orbital. The permissible values of n are 1,2,3.... prop while that of 1 are all possible integral values from 0 to n-n. Orbitals with same values of n and 1 but different values of m (where m can have any integral values from 1 to +1 including zero) are of equal energy and are called degenerate orbitals. However degeneracy is destroyed in homogeneous external magnetic field due to different extent of interaction between the applied field and internal electronic magnet of different orbitals differing in orientations. In octahedral magnetic field external magnetic field as oriented along axes while in tetrahedral field the applied field actas more in between the axes than that on the axes themselves. For 1=0, 1,2,3,...., the states (called sub-shells) are denoted by the symbol s,p,d,f.....respectively. After f, the subshells are denoted by letters alphabetically 1 determines orbital angular motion (L) of electron as L = sqrt(l(l+1))(h)/(2pi) ON the other hand, m determines Z-component of orbital angular momentum as L_(Z) = m((h)/(2pi)) Hund.s rule states that in degenerate orbitals electrons do not pair up unless and until each each orbitals has got an electron with parallesl spins Besides orbital motion,an electron also posses spin-motion. Spin may be clockwise and anticloskwise. Both these spin motions are called two spins states of electrons characterized by spin Q.N (s) : s = +(1)/(2) and = -(1)/(2) respectively The sum of spin Q.N. of all the electrons is called total spin(s) and 2s+1 is called spin multiplicity of the configuration as a whole. The spin angular momentum of an electron is written as L_(s) = sqrt(s(s+1))(h)/(2pi) According to Hund.s rule, the distribution of electron within the various orbitals of a given sub-shell is one which is associated with

SRS PUBLICATION-RESPIRATION AND CIRCULATION-QUESTION BANK
  1. MULTIPLE CHOICE QUESTION What is the function of arteries ? ( )

    Text Solution

    |

  2. MULTIPLE CHOICE QUESTION Choose the correct statement regarding the ac...

    Text Solution

    |

  3. MULTIPLE CHOICE QUESTION After doing exercise our respiratory rate may...

    Text Solution

    |

  4. MULTIPLE CHOICE QUESTION Read the paragraph and answer the question. ...

    Text Solution

    |

  5. MULTIPLE CHOICE QUESTION …..and lenticels help in exchange of gases in...

    Text Solution

    |

  6. MULTIPLE CHOICE QUESTION Name the part marked with '?' ( )

    Text Solution

    |

  7. The respiratory organs of fish

    Text Solution

    |

  8. MULTIPLE CHOICE QUESTION Which blood cells have colouring pigment ?

    Text Solution

    |

  9. MULTIPLE CHOICE QUESTION What happens if blood platelets are not ther...

    Text Solution

    |

  10. MULTIPLE CHOICE QUESTION Lime water turns into milky white by

    Text Solution

    |

  11. MULTIPLE CHOICE QUESTION Identify the organ from the picture. ( )

    Text Solution

    |

  12. MULTIPLE CHOICE QUESTION Identify the given blood cells. ( )

    Text Solution

    |

  13. MULTIPLE CHOICE QUESTION Identify the given blood cells. ( )

    Text Solution

    |

  14. MULTIPLE CHOICE QUESTION Match the following :

    Text Solution

    |

  15. FILL IN THE BLANK The process of inhaling air is called…..

    Text Solution

    |

  16. FILL IN THE BLANK The process of exhaling air is called…..

    Text Solution

    |

  17. FILL IN THE BLANK A larger thin muscular sheet attached to the chest c...

    Text Solution

    |

  18. Lime water turns into milky white by

    Text Solution

    |

  19. FILL IN THE BLANK Glucose + Oxygen rarr Carbondioxide +…..+Energy.

    Text Solution

    |

  20. FILL IN THE BLANK …..leads to lung cancer, tuberculosis and other resp...

    Text Solution

    |