Timed Challenge - Answer & Submit | GK Mania

1 What is the coordination number of Na⁺ in NaCl crystal?

A) 6

B) 8

C) 12

D) 4

2 What is the name for a substance that speeds up a reaction without being consumed?

A) Reagent

B) Substrate

C) Solvent

D) Catalyst

3 What state change is freezing?

A) Gas to liquid

B) Liquid to gas

C) Liquid to solid

D) Solid to liquid

4 What system removes waste from the blood?

A) Immune system

B) Urinary system

C) Nervous system

D) Digestive system

5 What is the formula for magnifying power of simple microscope?

A) m = f/D

B) m = D − f

C) m = D/f

D) m = 1 + D/f

6 What is the current sensitivity of a galvanometer?

A) Current per deflection

B) Voltage per deflection

C) Deflection per unit current

D) Resistance per deflection

7 What is the pressure at depth h in a liquid of density ρ?

A) ρ/gh

B) ρg/h

C) ρgh

D) gh/ρ

8 What is the national dish of Thailand?

A) Curry

B) Pad

C) Sushi

D) Pho

9 Which series of hydrogen spectrum falls in visible region?

A) Balmer series

B) Brackett series

C) Paschen series

D) Lyman series

10 What mirror type is used in car headlights?

A) Concave

B) Convex

C) Cylindrical

D) Flat

Quiz

1 What is the coordination number of Na⁺ in NaCl crystal?

2 What is the name for a substance that speeds up a reaction without being consumed?

3 What state change is freezing?

4 What system removes waste from the blood?

5 What is the formula for magnifying power of simple microscope?

6 What is the current sensitivity of a galvanometer?

7 What is the pressure at depth h in a liquid of density ρ?

8 What is the national dish of Thailand?

9 Which series of hydrogen spectrum falls in visible region?

10 What mirror type is used in car headlights?

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Quiz

1 What is the coordination number of Na⁺ in NaCl crystal?

2 What is the name for a substance that speeds up a reaction without being consumed?

3 What state change is freezing?

4 What system removes waste from the blood?

5 What is the formula for magnifying power of simple microscope?

6 What is the current sensitivity of a galvanometer?

7 What is the pressure at depth h in a liquid of density ρ?

8 What is the national dish of Thailand?

9 Which series of hydrogen spectrum falls in visible region?

10 What mirror type is used in car headlights?

Navigator

Quiz Results