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.
1. Question
The reagent which does not react with both, acetone and benzaldehyde?
Sodium hydrogen sulphite
Phenyl hydrazine
Fehling's solution
Grignard reagent
Correct Answer
Wrong Answer
2. Question
The common oxidation states of Ti are:
+2 and +3
+3 and +4
-3 and -4
+2,+3 and +4
Correct Answer
Wrong Answer
3. Question
Which of the following molecule exist?
He2
Be2
Li2
Both (1) and (2)
Correct Answer
Wrong Answer
4. Question
Which of the following is a buffer :
NaOH + CH3COONa
NaOH + Na2SO4
K2SO4 + H2SO4
CH3COONH4
Correct Answer
Wrong Answer
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
Correct Answer
Wrong Answer
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
Correct Answer
Wrong Answer
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
Correct Answer
Wrong Answer
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
Correct Answer
Wrong Answer
9. Question
Which of the following statements regarding properties of halogens are correct?
- Due to small size electron gain enthalpy of fluorine is less than that of chlorine.
- Iodine has same physical state but different colour as compare to other members of the group.
- Fluorine shows no positive oxidation state.
- In X2(g) + H2O(l) → HX(aq) + HOX(aq) (where X2 = Cl or Br)
- F2 is the strongest oxidising halogen.
(i), (ii) and (iv)
(i), (iii), (iv) and (v)
(ii), (iii) and (iv)
(iii) and (v)
Correct Answer
Wrong Answer
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
Correct Answer
Wrong Answer
11. Question
The IUPAC name of the compound having formula:
3-amino-hydroxy propine acid
2-amino-propan-3-oic acid
amino hydroxy propanoic acid
2-amino-3-hydroxy propanoic acid
Correct Answer
Wrong Answer
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]
Correct Answer
Wrong Answer
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
Correct Answer
Wrong Answer
14. Question
The correct structure of [Fe(CO)5] is (Z = 26 for Fe)
octahedral
tetrahedral
square pyramidal
trigonal bipyramidal
Correct Answer
Wrong Answer
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