Related Questions

 100 cm3 জলীয় NaOH দ্রবণকে প্রশমিত করতে 100cm3  0.2M oxalic acid দ্রবণ প্রয়োজন। NaOH দ্রবণের মোলারিটি নির্ণয় কর।
A 0.4 M
B 0.3 M
C 0.2 M
D 0.1 M
0.04M অক্সালিক এসিডের (Oxalic Acid) 300ml দ্রবণ তৈরী করতে কি পরিমাণ অক্সালিক এসিড প্রয়োজন হবে?
A 1.08 gm
B 0.54 gm
C 0.75 gm
D 1.51 gm
What is the natural source of Oxalic acid?
A Tomato
B Sour milk
C Ant sting
D Tamarind
Rectangular floors X and Y have equal area. If floor X is 12 feet by 18 feet and Floor Y is 9 feet wide, what is the length of floor Y, in feet?
A 13.5
B 18
C 21
D 24
The elevator in an eleven-storied office building travels at the rate of one floor per 1/4 minute, which allows time for picking up and letting down passengers. At the main floor and at the top floor the operator stops for 1 minute. How many complete (with return) trips will the operator makes during a 7-hour period?
A 50
B 60
C 80
D 90
The elevator in an eleven-storied office building travels at the rate of one floor per 1/4 minute, which allows time for picking up and letting down passengers. At the main floor and at the top floor the operator stops for 1 minute. How many complete (return) trips will the operator make during a 7 hours period?
A 50
B 60
C 80
D 90
If the height of the hydraulic gradient line above the floor of thickness t is h and the specific gravity of the material of the floor is G, the minimum thickness t of the floor downstream of the crest-wall, is given by the equation
A $${\text{t}} = \frac{{{\text{h}} + 1}}{{{\text{G}} + {\text{t}}}}$$
B $${\text{t}} = \frac{{{\text{h}} - 1}}{{{\text{G}} + {\text{t}}}}$$
C $${\text{t}} = \frac{{{\text{h}} - 1}}{{{\text{G}} - {\text{t}}}}$$
D $${\text{t}} = \frac{{{\text{h}} + 1}}{{\text{G}}}$$
The length of a rectangular floor is one and a half times its breadth. What is the perimeter of the floor (in meters) if its area is 216 sq. meters :
A 40
B 50
C 60
D 44
A glass rod when rubbed with silk cloth is charged because
A It takes in proton
B Its atoms are removed
C It gives away electrons
D It gives away positive charge
Asif is designing a doll house. The floor will be in the shape of a rectangle whose length is 2 feet more than its width. How long should the doll house be if Asif wants the area of the floor to be 15 square feet?
A 4 feet
B 8 feet
C 5 feet
D 2 feet

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