What are the products in the reaction: CH4 + 2O2 → CO2 + 2H2O...? Mcqs

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What are the products in the reaction: CH4 + 2O2 → CO2 + 2H2O...?

(A) Methane and Oxygen
(B) Carbon dioxide and Water

(C) Hydrogen and Oxygen
(D) Carbon and Water

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Which colour of light is deviated least ________....?

(A) Red
(B) Blue

(C) Violet
(D) Green

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The “Rising” of the “evening star” indicates the direction of the____________...?

(A) South Pole
(B) East

(C) West
(D) North

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In eye donation, which one of the following parts of donor’s eye is utilized ...?

(A) Iris
(B) Lens

(C) Cornea
(D) Retina

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Gel electrophoresis is used in...?

(A) Amplifying DNA
(B) Sequencing DNA

(C) Separating DNA fragments on the basis of size
(D) Cloning DNA

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Water is a highly effective coolant for a car engine because _________...?

(A) Water is good conductor of heat
(B) Water has very high specific heat capacity

(C) Water boils at a comparatively high temperature
(D) Evaporation of water produces lot of cooling

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Approximately, how many times each day do our heart valves open and close normally...?

(A) 10,000
(B) 1,00,000

(C) 1,50,000
(D) 2,00,000

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___________ is a star at the center of the solar system...?

(A) Earth
(B) Mercury

(C) Sun
(D) Venus

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You have discovered a new celestial body. It has a thick atmosphere and it produces powerful cosmic winds and, when observed, the clouds obscure the body. You have determined it is this type of star....?

(A) Wolf-Rayet star
(B) Red supergiant

(C) Stellar storm
(D) Pulsar

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Which formula helps in the determination of the maximum number of electrons present in an orbit...?

(A) 2n^2
(B) 2n

(C) n^2
(D) n/2

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