What is the change in the oxidation number of phosphorus in the following reaction?
4P(s) + 5O2(ag) → 2P2O5(s) A. 0 to 2 B. 0 to 5 C. 4 to 2 D. 4 to 5 E. 4 to 10 Correct Answer: Option B – 0 to 5
Chlorine displaces bromine from aqueous potassium bromide because?
A. bromine is a liquid at room temperature B. bromine is weakly acidic. C. bromine has a greater atomic radius than chlorine D. chlorine is a stronger oxidizing agent than bromine. E. the density of chlorine is less than the density of bromine. Correct Answer: Option...
The pH of water is 7. What is the pH of orange juice?
A. 7 B. above 10 C. below 2 D. between 5.5 and 6.5 E. between 7.5 and 8.5 Correct Answer: Option D – between 5.5 and 6.5
Small amounts of compounds of transition metals are sometimes added to glass during manufacture in order to make the glass?
A. acquire certain colours B. easier to melt C. easier to mould D. little brittle E. more transparent Correct Answer: Option A – acquire certain colours
Which separation technique is routinely applied in the petroleum industry?
A. chromatography B. distillation C. evaporation D. fractional crystallization E. fractional distillation Correct Answer: Option E – fractional distillationProducts
-
Download Business Administration Project Topic PDF - Effects of Job Stress on Employee’s Performance in Evans Nigeria
Original price was: ₦600.00.₦300.00Current price is: ₦300.00.
-
Download Accountancy Project Topic PDF - Effect Of Cost Control On The Profit Of An Organization (A Case Study Viju Milk Industries Nigeria Limited)
Original price was: ₦600.00.₦400.00Current price is: ₦400.00.
-
Download Animal Production Journal Article PDF - Performance of Some Forage Rass Species in the Southern Guinea Savannah Agro-Ecological Zone in Nasarawa State of Nigeria
Original price was: ₦600.00.₦300.00Current price is: ₦300.00.
-
Download Conference Paper Article PDF - Video Summarization Based Handout Generation from Video Lectures: A Gesture Recognition Framework
Original price was: ₦600.00.₦300.00Current price is: ₦300.00.
-
Download Conference on Advanced Computer Theory Article PDF - Real-Time Mono Vision Gesture-Based Virtual Keyboard System
Original price was: ₦600.00.₦300.00Current price is: ₦300.00.