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Model Paper 7 NEET - Model Paper 7

Gujarat Board (GSEB) - STD 11 Science - NEET (GSEB - English Medium). 180 questions in this chapter.

Question types

Model Paper 7 question types

180 questions across 4 question groups — pick any mix to generate a NEET paper with step-by-step answer keys.

180
Questions
4
Question groups
5
Question types
Sample Questions

Model Paper 7 questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1SECTION - A [PHYSICS - MCQ]4 Marks
Consider two nuclei of the same radioactive nuclide. One of the nuclei was created in a supernova explosion 5 billion years ago. The other was created in a nuclear reactor 5 minute ago. The probability of decay during the next time is:
  • A
    nuclei created in explosion
  • B
    nuclei created in the reactor
  • ✓
    independent of the time of creation
  • D
    different for each nuclei

Answer: C.

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Q 2SECTION - A [PHYSICS - MCQ]4 Marks
If m is the mass of electron, v its velocity, r is the radius of stationary circular orbit around a nucleus with charge Ze, then from Bohr's second postulate, the radius of the quantised orbit in CGS system is given by:
  • ✓
    $\frac{n^2 h^2}{4 \pi^2 m e^2 Z}$
  • B
    $\frac{4 \pi^2 m}{n^2 h^2 Z e^2}$
  • C
    $\frac{4 \pi^2 m Z e^2}{n^2 h^2}$
  • D
    $\frac{n^2 h^2 Z e^2}{4 \pi^2 m}$

Answer: A.

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Q 4SECTION - A [PHYSICS - MCQ]4 Marks
An electron, a doubly ionized helium ion ( He++ ) and a proton are having the same kinetic energy. The relation between their respective de-Broglie wavelengths $\lambda_e$, $\lambda_{H e^{++}}$ and $\lambda_p$ is:
  • A
    $\lambda_{ e }<\lambda_{ p }<\lambda_{H e^{++}}$
  • B
    $\lambda_{ e }>\lambda_{H e^{++}}>\lambda_{ p }$
  • ✓
    $\lambda_{ e }>\lambda_{ p }>\lambda_{H e^{++}}$
  • D
    $\lambda_{ e }<\lambda_{H e^{++}}=\lambda_{ p }$

Answer: C.

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Q 5SECTION - A [PHYSICS - MCQ]4 Marks
If a thin mica sheet of thickness t and refractive index $\mu$ is placed in the path of one of the waves producing interference, then the whole interference pattern shifts towards the side of the sheet by a distance:
  • A
    $\frac{d}{D}(\mu-1) t$
  • ✓
    $\frac{D}{d}(\mu-1) t$
  • C
    $(\mu-1) t$
  • D
    $D d(\mu-1) t$

Answer: B.

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Q 8SECTION - A [CHEMISTY - MCQ]4 Marks
3 faraday of electricity is passed through molten Al2O3, aqueous solution of CuSO4 and molten NaCl taken in three different electrolytic cells. The amount of Al, Cu and Na deposited at the cathodes will be in the ratio of:
  • A
    3 mole: 2 mole: 1 mole
  • B
    1.5 mole: 2 mole: 3 mole
  • C
    1 mole: 2 mole: 3 mole
  • ✓
    1 mole: 1.5 mole: 3 mole

Answer: D.

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Q 10SECTION - A [CHEMISTY - MCQ]4 Marks
A sugar X dehydrates very slowly under acidic condition to give furfural which on farther reaction with resorcinol gives the coloured product after sometime. Sugar X is:
  • ✓
    Aldopentose
  • B
    Ketotetrose
  • C
    Aldotetrose
  • D
    Oxalic acid

Answer: A.

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Q 12SECTION - A [BOTANY - MCQ]4 Marks
The main purpose of electron transport chain is to
  • A
    Glucose - 6 - PO4, to fructose - e - PO4,
  • ✓
    cycle NADH + H+ back to NAD+.
  • C
    use the intermediates from TCA cycle.
  • D
    breakdown pyruvate.

Answer: B.

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Q 19SECTION - A [ZOOLOGY - MCQ]4 Marks
Consider the following statements.
i. In microinjection method, foreign DNA is directly injected into the nucleus of animal cell or plant cell by using microneedles or micropipettes.
ii. Microinjection method is used in oocytes, eggs, and embryo.
iii. Electroporation is the formation of temporary pores in the plasma membrane of host cell by using lysozyme or calcium chloride.
iv. In chemical mediated gene transfer method, certain chemicals such as $Ca ^2+$ help foreign DNA to enter the host cell.
Which of the statements given above are correct?
  • A
    (i), (ii), (iii), and (iv)
  • ✓
    (i), (ii), and (iv)
  • C
    (ii), (iii), and (iv)
  • D
    (i) and (ii)

Answer: B.

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