Monthly quiz October 2023, G10

Which one of the following is not considred as onedimentional nano-substances

• Thin films

• Carbon nanotubes

• Nnofibers

• Nno wires

The three diminsional nano substance of the following is ..................................

• The thin films

• The Bocky ball

• The carbon nanotube

• The nanofibers

The opposite apparatus is .................................

• The conical flask

• The beaker

• The PH meter

• The Burette

Water is neutral solution, Not acidic or basic. So, its PH equal ..............................

• 3

• 5

• 7

• 11

The right chemical formula of Alumenum Phosphate is ..........................................

• Al₃(PO4)₃

• Al₂(PO₄)₃

• Al PO₄

• Al₃(PO₄)₂

The opposite figure represents the combination between ............................................

• Chemistry and physics

• Chemistry and medicine

• Chemistry and Biology

• Chemistry, Physics, and Medicine

A doctor has prescribed 0.125 g of ampicillin for a patient, if each 5 mL. of the ampicilline syrub contains 250 mg of ampicilline.

What is the volume which is required for the patient in each dose?

• 5 ml.

• 2.5 ml.

• 1.25 ml.

• 0.75 ml.

The correct cofficients that balance the following equation

Fe + O₂ ----------------- Fe₂O₃

are ........., .............. , .....................

• 3, 2, 3

• 2, 3, 3

• 2, 1, 3

• 4, 3, 2

The stomach contains Hydrochloric acid which helps in food digestion.

If a human drinks an alkaline solution, the net ionic equation that represents to this reaction is

..........................................................................................

• H⁺ + H⁺ ------ H₂

• OH^- + H^- ------ H₂O

• H⁺ + OH^- ------- H₂O

• No correct answer

The balanced equation of burning glucose( C₆H₁₂O₆) is .........................................................................

• C₆H₁₂O₆ + O₂ -----

  H₂O + CO₂

• C₆H₁₂O₆ + 5 O₂ -----

  2 H₂O + 6 CO₂

• C₆H₁₂O₆ + 6 O₂ -----

  3 H₂O + 2 CO₂

• C₆H₁₂O₆ + 6 O₂ -----

  6 H₂O + 6 CO₂