The tip of the match-stick contains:
- (A) Black phosphorous
- (B) White phosphorous
- (C) Red phosphorous
- (D) Scarlet phosphorous
- (C) Red phosphorous
Which of the following metals occurs in free state?
- (A) Sodium
- (B) Copper
- (C) Gold
- (D) Aluminum
- (C) Gold
The “Big Dipper” refers to a:
- (A) Galaxy
- (B) Group of seven bright stars
- (C) Large ocean-wave
- (D) Underwater geographical formation
- (B) Group of seven bright stars
Telephone was invented by Alexander Graham Bell in:
- (A) 1876
- (B) 1888
- (C) 1890
- (D) 1900
- (A) 1876
One may define Renewable Energy as:
- (A) Energy derived from non-traditional sources
- (B) Energy derived from sources that do not use up natural resources or harm the environment
- (C) Energy fueled into ways that do not use up natural resources or harm the environment
- (D) All of these
- (B) Energy derived from sources that do not use up natural resources or harm the environment
Human body can make _______ under sunlight.
- (A) Vitamin K
- (B) Vitamin B
- (C) Vitamin C
- (D) Vitamin D
- (D) Vitamin D
Which is the second closest planet from the sun?
- (A) Earth
- (B) Mercury
- (C) Mars
- (D) Venus
- (D) Venus
Bleaching powder is prepared by passing chlorine over:
- (A) Quicklime
- (B) Dry slaked lime
- (C) Limestone
- (D) Milk of lime
- (B) Dry slaked lime
Which of the following is NOT a layer of the Earth?
- (A) Magma
- (B) Outer core
- (C) Mantle
- (D) Inner core
- (A) Magma
What is the pH value of acidic solution?
- (A) < 7 (less than 7)
- (B) > 7 (greater than 7)
- (C) = 7 (equal to 7)
- (D) ≥ 7 (greater and equal to 7)
- (A) < 7 (less than 7)
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