NEET 2021

184 Questions • 180 Minutes • 2021

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Q21
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
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Q22
The maximum temperature that can be achieved in blast furnace is:
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Q23
Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.
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Q24
Statement-I: Acid strength increases in the order given as HF << HCl << HBr << HI. Statement II: As the size of the elements F, Cl, Br, I increases down the group, the bond strength of HF, HCl, HBr and HI decreases and so the acid strength increases. In the light of the above statements, choose the correct answer from the options given below.
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Q25
Zr (Z = 40) and Hf (Z = 72) have similar atomic and ionic radii because of:
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Q26
The incorrect statement among the following is:
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Q27
Ethylene diaminetetraacetate (EDTA) ion is:
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Q28
The correct sequence of bond enthalpy of 'C-X' bond is:
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Q29
The major product formed in dehydrohalogenation reaction of 2-Bromo pentane is Pent-2-ene. This product formation is based on?
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Q30
What is the IUPAC name of the organic compound formed in the following chemical reaction? $Acetone \xrightarrow[(ii)\ H_2O,\ H^+]{(i)\ C_2H_5MgBr,\ dry\ ether} Product$
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Q31
Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.
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Q32
The RBC deficiency is deficiency disease of:
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Q33
Which one of the following polymers is prepared by addition polymerisation?
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Q34
Given below are two statements: Statement-I: Aspirin and Paracetamol belong to the class of narcotic analgesics. Statement II: Morphine and Heroin are non-narcotic analgesics. In the light of the above statements, choose the correct answer from the options given below.
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Q35
From the following pairs of ions which one is not an iso-electronic pair?
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Q36
Which of the following molecules is non-polar in nature?
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Q37
Choose the correct option for the total pressure (in atm.) in a mixture of 4 g $O_2$ and 2 g $H_2$ confined in a total volume of one litre at 0°C is: [Given r = 0.082 L atm $mol^{-1}K^{-1}$, T = 273 K]
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Q38
For irreversible expansion of an ideal gas under isothermal condition, the correct option is:
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Q39
Match List-I with List-II. [table] List-I | List-II ; (A) $2SO_2(g) + O_2(g) \rightarrow 2SO_3(g)$ | (i) Acid rain ; (B) $HOCl(g) \xrightarrow{h\nu} \dot{O}H + \dot{C}l$ | (ii) Smog ; (C) $CaCO_3 + H_2SO_4 \rightarrow CaSO_4 + H_2O + CO_2$ | (iii) Ozone depletion ; (D) $NO_2(g) \xrightarrow{h\nu} NO(g) + O(g)$ | (iv) Tropospheric pollution [/table] Choose the correct answer from the options given below.
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Q40
The correct option for the value of vapour pressure of a solution at 45°C with benzene to octane in molar ratio 3 : 2 is: [At 45°C vapour pressure of benzene is 280 mm Hg and that of octane is 420 mm Hg. Assume Ideal gas]
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Paper Info
  • Exam: NEET
  • Year: 2021
  • Questions: 184
  • Duration: 180 mins
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