RRB Group D Science Analysis 8th Sept All Sift. if you are an RRB group d examinee then you must read this science analysis for your upcoming RRB group d exam it can definitely help you. so let’s get started.
Q. In a wire current increase three times, then what will be the effect on heat?
Ans. H= I²RT, then the Ans will be the 9th time.
Q. in a convex mirror F = 30 cm then find the Radius of curvature.
Ans. we know that R = 2f, if f = 30 then 2f = 30*2 = 60.
Q. what is the next homogenous member of CH3OH?
Ans. CH3OH is the chemical name of methyl alcohol, then the homogenous is ethyl alcohol, the chemical name of ethyl alcohol C2H5OH.
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Q. if V = 12 volt and C = 5 amp then find the power?
Ans. we know P = V*I , then P = 12*5 = 60 w.
Q. which of the following product is made by washing soda?
Q. what is the quantity of CO2 in the atmosphere?
Ans. in the atmosphere most quantity is nitrogen 78%, Oxygen 21%, and CO2 0.04%.
Q. double displacement of – cuSO4 + 2NaOH — Na2SO4 + ?
Ans. Na2SO4 + Cu(OH)2.
Q. statement 1. The reaction of acid and base is called neutralization. statement 2. After the reaction of acid and base, it gives salt and water.
Ans. 1 and 2 both are followed.