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Modern ABC Chemistry Class 10. We covered all the Modern ABC Chemistry Class 10 in this post for free so that you can practice well for the exam.
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Modern ABC Objective Chemistry Class 10 Students
A mixture of concentrated HCl and HNO₃ in a 3:1 ratio contains
a) CO₂
b) NOCl
c) NCl₂
d) N₂O₄
Option b – NOCl
Chlorine acts as a bleaching agent only in the presence of
a) Dry air
b) Moisture
c) Sunlight
d) Pure oxygen
Option b – Moisture
The Molecular shape of BrF₅ can be explained using which type of hybridization?
a) dsp²
b) sp³d²
c) dsp³
d) sp³d
Option b – sp³d²
Which reagent is used to generate Cl₂ gas at room temperature from concentrated HCl?
a) MnO₂
b) H₂S
c) KMnO₄
d) Cr₂O₃
Option c – KMnO₄
Hydrogen Bonding is strongest in
a) O–H……S
b) S–H……O
c) F–H……F
d) F–H……O
Option c – F–H……F
Which AB₃-type interhalogen compound has a dimeric planar structure?
a) ClF₃
b) ICl₃
c) BrF₃
d) IF₃
Option b – ICl₃
The hybridization of iodine in hypoiodous Acid (HOI) molecules is
a) sp³
b) sp²
c) sp
d) sp³d
Option a – sp³
Chlorine is added to drinking water to
a) Kill bacteria
b) Remove dirt
c) Purify the water
d) Remove suspended particles
Option a – Kill bacteria
Passing Cl₂ through hot, concentrated KOH forms
a) KCl
b) KClO₃
c) KClO₂
d) KClO₄
Option b – KClO₃
The disproportionation of hypochlorous Acid (HClO) produces
a) HClO₃ and Cl₂O
b) HClO₂ and HClO₄
c) HCl and Cl₂O
d) HCl and HClO₃
Option d – HCl and HClO₃
Which oxide is expected to show paramagnetic behavior?
a) CO₂
b) ClO₂
c) SO₂
d) SiO₂
Option b – ClO₂
We covered all the modern abc Chemistry Class 10 above in this post for free so that you can practice well for the exam.
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Also, check out:
- Balaji Publications Chemistry for NEET
- 1 PUC Chemistry Question Paper
- Viraf J Dalal Chemistry Class 9
