csgprabhu
Asked:
September 2023
i) What is the color of ferrous sulphate crystals?How does this color change after heating? ii) Name the product formed on strongly heating ferrous sulphate crystals. What type of chemical reaction occurs in this change?
csgprabhu
Asked:
December 2022
If the LCM of 'a' and 18 is 36 and HCF of a and 18 is 2, then a= a)2 b)3 c)4 d) plssssss answer fast.
csgprabhu
Asked:
December 2022
The value of k for which the equations kx - y = 2 and 6x- y = 3 has a unique solution is a) a=1,b=5 b) a=5,b=1 c) a=-1,b=5 d) a=5,b=-1
csgprabhu
Asked:
December 2022
The area of the triangle formed by the lines y = x, x = 6 and y = 0 is a) 36.sq.units b) 18.sq.units c) 9.sq.units d) 72.sq.units pls ans fasst.................
csgprabhu
Asked:
December 2022
If the system of equations 2x + 3y = 7 and (a+b)x + (2a-b)y = 21 has infinitely many solutions, then a) a = 1, b = 5 b) a = 5, b = 1 c) a = -1, b = 5 d) a = 5, b = -1 pls...
csgprabhu
Asked:
December 2022
urgent question The value of k for which the equations kx - y = 2 and 6x - y = 3 has a unique solution is (a) = 3 (b) not equal to 3 (c) not equal to 0 (d) = 0 pls ans fast..............
The value of k for which the system of equations x + 2y = 5 and 3x + ky + 15 = 0, has no solution is a) 6 b) -6 c) 3/2 d) none of these pls ans fast plss..................
csgprabhu
Asked:
December 2022
The sum of the digits of a 2 digit no. is 9. If 27 is added to it, the digits of the no. get reversed. the no. is a) 25 b) 72 c) 63 d) 36
csgprabhu
Asked:
December 2022
In the electrolysis of water : i) Name the gas collected at the cathode and anode respectively. ii) Why is the volume of gas collected over one electrode double that of gas collected over the other electrode. iii) define the type of reaction involved. plss anyone ans fast
csgprabhu
Asked:
December 2022
The LCM and HCF of 2 rational no.s are equal, then the no.s must be a) prime b) co-prime c) composite d) equal
csgprabhu
Asked:
December 2022
If the sum of LCM and HCF of 2 no.s is 1260 and their LCM is 900 more than their HCF, then the product of 2 no.s is a) 203400 b) 194400 b) 198400 d) 205400 plssss an. fast and no need of steps.
csgprabhu
Asked:
December 2022
The decimal expansion of the rational no. 14587/1250 will terminate after a) 1 decimal place b)2 decimal places c) 3 decimal places d) 4 decimal places plssssss ans. fast and no need of steps.
csgprabhu
Asked:
December 2022
5 years, ago Nuri was thrice as old as Sonu. Ten years later, Nuri will be twice as sonu. How old are they ? pls ans fast