Timed Challenge - Answer & Submit | GK Mania

1 What is the condition for total internal reflection?

A) Only at 0°

B) Only at 90°

C) Any angle

D) Angle of incidence > critical angle in denser medium

2 What is anti-Markovnikov addition observed with?

A) HI

B) HCl

C) H₂O

D) HBr in presence of peroxides

3 A body of mass 2 kg is moving with velocity 3 m/s. Its kinetic energy is?

A) 9 J

B) 6 J

C) 3 J

D) 12 J

4 What is the Hinsberg test used for?

A) Testing aldehydes

B) Testing acids

C) Testing alcohols

D) Distinguishing primary, secondary, tertiary amines

5 What is the effect of electron-withdrawing groups on acidity?

A) Decrease acidity

B) Increase acidity (stabilize conjugate base)

C) Depends on position

D) No effect

6 Which gas is released when Na reacts with water?

A) Cl₂

B) H₂

C) O₂

D) N₂

7 What is the principle of a cyclotron?

A) Nuclear fission

B) Gravity

C) Charged particle accelerated by electric field in magnetic field

D) Thermal expansion

8 What is the degree of unsaturation in benzene?

A) 6

B) 4

C) 2

D) 3

9 What is the product of Reimer-Tiemann reaction?

A) Salicylaldehyde (from phenol)

B) Benzaldehyde

C) Aspirin

D) Aniline

10 What is an antibiotic used to treat?

A) Viral infections

B) Allergic reactions

C) Bacterial infections

D) Fungal infections

Quiz

1 What is the condition for total internal reflection?

2 What is anti-Markovnikov addition observed with?

3 A body of mass 2 kg is moving with velocity 3 m/s. Its kinetic energy is?

4 What is the Hinsberg test used for?

5 What is the effect of electron-withdrawing groups on acidity?

6 Which gas is released when Na reacts with water?

7 What is the principle of a cyclotron?

8 What is the degree of unsaturation in benzene?

9 What is the product of Reimer-Tiemann reaction?

10 What is an antibiotic used to treat?

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Quiz

1 What is the condition for total internal reflection?

2 What is anti-Markovnikov addition observed with?

3 A body of mass 2 kg is moving with velocity 3 m/s. Its kinetic energy is?

4 What is the Hinsberg test used for?

5 What is the effect of electron-withdrawing groups on acidity?

6 Which gas is released when Na reacts with water?

7 What is the principle of a cyclotron?

8 What is the degree of unsaturation in benzene?

9 What is the product of Reimer-Tiemann reaction?

10 What is an antibiotic used to treat?

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Quiz Results