NEET Chemistry Daily MCQs Practice Questions | 7 August, 2024

Enhance your NEET 2025 preparation with our daily Chemistry MCQs. Practice today's set of questions (7 August, 2024) to strengthen your understanding and performance. Detailed solutions and explanations are provided for each question.

Aug 7, 2024 - 08:40
Aug 18, 2024 - 09:25
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1. Question

The reagent which does not react with both, acetone and benzaldehyde?

Sodium hydrogen sulphite

Phenyl hydrazine

Fehling's solution

Grignard reagent

2. Question

The common oxidation states of Ti are:

+2 and +3

+3 and +4

-3 and -4

+2,+3 and +4

3. Question

Which of the following molecule exist?

He2

Be2

Li2

Both (1) and (2)

4. Question

Which of the following is a buffer :

NaOH + CH3COONa

 NaOH + Na2SO4

K2SO4 + H2SO4

 CH3COONH4

5. Question

Two compounds benzyl alcohol and benzoic acid are formed from a compound, when it is heated in the presence of conc. NaOH and followed by hydrolysis, this compound is.

Benzaldehyde

Benzylalcohol

Acetophenone

Benzophenone

6. Question

2 moles of an ideal gas is expanded isothermally and reversibly from 1 L to 10 L at 300 K. The enthalpy change for the process is :

11.4 KJ

–11.4 KJ

0 KJ

4.8 KJ

7. Question

On passing 3 ampere of electricity for 50 min. 1.8 gm metal deposits. The equivalent mass of metal is :

 20.5

25.8

19.3

30.7

8. Question

The pKa of a weak acid, HA, is 4.80 . The pKb of a weak base, BOH, is 4.78. The pH of an aqueous solution of the corresponding salt, BA, will be:

 9.58

4.79

7.01

9.22

9. Question

Which of the following statements regarding properties of halogens are correct?

  1.  Due to small size electron gain enthalpy of fluorine is less than that of chlorine.
  2.  Iodine has same physical state but different colour as compare to other members of the group.
  3.  Fluorine shows no positive oxidation state.
  4.  In X2(g) + H2O(l) → HX(aq) + HOX(aq) (where X2 = Cl or Br)
  5.  F2 is the strongest oxidising halogen.

(i), (ii) and (iv)

 (i), (iii), (iv) and (v)

(ii), (iii) and (iv)

(iii) and (v)

10. Question

If the half life period of a reaction is inversely proportional to the initial concentration, the order of the reaction is :

Zero

One

Two

Three

11. Question

The IUPAC name of the compound having formula:

O=COH|CHNH2|CH2OH|

3-amino-hydroxy propine acid

2-amino-propan-3-oic acid

amino hydroxy propanoic acid

2-amino-3-hydroxy propanoic acid

12. Question

Which one of the following coordination compounds is used to inhibit the growth of tumours:

Trans - [Co(NH3)3Cl3]

Cis - [PtCl2(NH3)2]

Cis - K2[PtCl2Br2]

Trans - [PtCl2(NH3)2]

13. Question

Bohr model can explain :

the solar spectrum

the spectrum of hydrogen molecule

spectrum of any atom or ion containing one electron only

 the spectrum of hydrogen atom only

14. Question

The correct structure of [Fe(CO)5] is (Z = 26 for Fe)

octahedral

tetrahedral

 square pyramidal

trigonal bipyramidal

15. Question

 If Kc is in the range of _______ appreciable concentrations of both reactants and products are present.

10–4 to 104

10–3 to 103

103 to 106

10–5 to 103