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.
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.