Related Questions

The most reactive allotropic form of phosphorus is __________ phosphorus.
A Red
B Yellow
C Violet
D Black
White phosphorus is generally kept under
A Alcohol
B Water
C Glycerine
D Kerosene oil
White phosphorus is always kept under
A Benzene
B Kerosene
C Ether
D Water
Zakia kept on talking here kept on means:____
A maintain
B continued
C carried
D take way
On fixed deposits, Bank X offers an interest of 13.5% per year and Bank Y offers 14.00% per annum. Arianna kept taka one million with Bank X for a year and Tatiana kept the same amount in Bank Y also for a year? How much did Arianna lose at the end of the year in taka?
A 5,000
B 6,000
C 4,500
D 5,500
10 dozen apples, 15 dozen mangoes & 20 dozen oranges are kept for sale. 1/2, 1/3rd & 1/4th of each item respectively have been added. What is the total number of fruits kept for sale now?
A 720
B 600
C 580
D 820
The main reserves of phosphorus in the biosphere is in the-
A hydrosphere
B atomosphere
C lithosphere
D troposphere
Which one of the following forms of phosphorus is most reactive?
A Black phosphorus
B White phosphorus
C Violet phosphorus
D Red phosphorus
Which among the following is white phosphorus?
A P1
B P6
C P4
D P5
Which of the following statement(s) is/are INCORRECT regarding Phosphorus?
A Phosphorus reacts vigorously with water
B It is a non-metal
C It catches fire on reacting with air
D It is found in group 15 of the modern periodic table

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