General Science - Chemistry MCQs

[A] Distill Water
[B] Drinking water
[C] Hard water
[D] Urine

[A] Silica gel molecules are hydrophilic with large surface area and so its molecules trap the moisture
[B] Silica gel is a Hygroscopic substance with large surface area so its molecules absorb the moisture.
[C] Silica gel molecules are with a portion that is charge-polarized and capable of hydrogen bonding, thus bonds with the water molecules
[D] The semi permeable pouch in which silica gel is placed absorbs the moisture which later reacts with water.

[A] 1.054615 gigajoule
[B] 0.1054615 gigajoul
[C] 10.54615 gigajoule
[D] 105.4615 gigajoule

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

[A] Only 1
[B] Only 1 & 2
[C] Only 3
[D] Only 1 & 3

[A] Only 1 is correct
[B] Only 2 is correct
[C] Both 1 & 2 are correct
[D] Neither 1 nor 2 are correct

[A] Aluminum
[B] copper
[C] Iron
[D] Silver

[A] Oxygen and helium
[B] Oxygen and hydrogen
[C] Oxygen and carbon dioxide
[D] Oxygen, Helium & nitrogen

[A] fireless temperature
[B] ignition temperature
[C] static temperature
[D] optimum temperature

[A] Only 1 is correct
[B] Only 2 is correct
[C] Only 3 is correct
[D] 1 & 3 are correct