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NEET Test 114
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NEET Test 114
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  • Question 1/10
    4 / -1

    If a coil of 40 turns and area 4.0cm2 is suddenly removed from a magnetic field, it is observed that a charge of 2.0×10−4C flows into the coil. If the resistance of the coil is 80Ω, the magnetic flux density in Wb / m2 is:

    Solutions

     

  • Question 2/10
    4 / -1

    The correct order of acidic behaviors of the following oxoacids is:

    1. Hypochlorous acid

    2. Chlorous acid

    3. Chloric acid

    4. Perchloric acid

    Solutions

    Oxygen is more electronegative than chlorine. With an increase in the number of O atoms attached to Cl, more electrons are pulled away from O - H bond and more weaker becomes the O - H bond. This increases the acid strength.

    The decreasing order of acidic strength is

    HClO4 > HClO3 > HClO2 > HClO. 

    Hence, the correct option is (A).

     

  • Question 3/10
    4 / -1

    Which of the following is not used as a biopesticide?

    Solutions

    Chemicals or toxins of biological origin used as pesticides are called biopesticides. Bacillus thuringiensis produces Bt toxin that interrupts the digestive process in the gut of insect to kill them. Nuclear Polyhedrosis Virus (NPV) (Baculoviruses) is used as insecticides for crops as it affects the pestinsect group like moths and butterflies.

    Xanthomonas campestris is a plant pathogen of bacterial origin.

    Nosema locustae is a fungal biopesticide utilized in curbing insect pest group like grasshoppers, caterpillars, variety of corn borers.

    Hence, the correct option is (B).

     

  • Question 4/10
    4 / -1

    Two waves having their intensities in the ratio of 9:1 produce interference. In the interference pattern, the ratio of maximum to minimum intensity is equal to:

    Solutions

     

  • Question 5/10
    4 / -1

    Which one of the following is the first publication of Carolus Linnaeus?

    Solutions

    Hortus Upplandicus is the first publication of Carolus Linnaeus.

    Publications of Carolus Linnaeus

    • Hortus Upplandicus (First) 
    • Philosphica Botanica
    • Species Plantrum
    • Systema Nature

    Hence, the correct option is (D).

     

  • Question 6/10
    4 / -1

    For the start of respiration, a living cell requires:

    Solutions

    The mechanism of respiration is initiated by breaking down glucose to pyruvic acid without the help of oxygen. The initial process occurs in the cytosol of cells which requires glucose as well as ATP molecules which provide energy for the process to start. This initial process is known as glycolysis and it takes place in 10 steps in which total of 4 ATP molecules are produced and 2 ATP molecules are consumed. Thus, these are the net production of 2 ATP molecules. 

    Hence, the correct option is (D).

     

  • Question 7/10
    4 / -1

    If the degree of freedom of a gas molecule be f, then the ratio of two specific heat  is given by:

    Solutions

     

  • Question 8/10
    4 / -1

    A particle executing simple harmonic motion of amplitude 5 cm has a maximum speed of 31.4 cm/s. The frequency of its oscillation is:

    Solutions

     

  • Question 9/10
    4 / -1

    Three processes form a thermodynamic cycle as shown on P − V diagram for an ideal gas. Process 1 → 2 takes place at constant temperature (300 K). Process 2 → 3 takes place at constant volume. During this process 40 J of heat leaves the system.

    Process 3 → 1 is adiabatic and temperature T3 is 275 K. Work done by the gas during the process 3 → 1 is:

    Solutions

    Given:

    Process 1 is an isothermal process. (300K)

    Process 2 is an isochoric process. (40j of heat leaves the system)

    Process 3 is adiabatic process. (T3 is 275 K) 


    Hence, the correct option is (A).

     

     

  • Question 10/10
    4 / -1

     The type of placentation in which ovary is syncarpous, unilocular and ovules on sutures is called:

    Solutions

    Fibrous oviposition is found in bicuspial or multicellular, eukaryotic and unicellular ovaries. In this, spores are located on the pectoral sites of the ovaries on the periphery of the ovary.

    Hence, the correct option is (B).

     

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