Consider the following redox reaction. Zn+dil HNO3? Zn (NO3)2 + N2O + H2O The coefficient number of HNO3 in the equation is__________________?

Related Mcqs:

1. Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO4 ? K2SO4 + 2H2O + 2CO2 + Oxide Which oxide of chlorine is produced in the above reaction ?

   A. Cl2O
   B. ClO2
   C. Cl2O6
   D. Cl2O7

2. Consider the following reaction- 3Cl2 + 6NaOH ? NaClO3 + 5NaCl + 3H2O This reaction is_______________?

   A. Displacement reaction
   B. Double displacement reaction
   C. Disproportionation reaction
   D. Reduction reaction

3. Nitrate (NO3) ions are obtained by the process of __________?

   A. Nitrification
   B. Fermentation
   C. Denitrification
   D. None of these

   Submitted by: Sana

4. Which of the elements show passivity when treated with conc. HNO3?

   A. Fe
   B. A
   C. Cr
   D. All of the above

5. What is the molecular Weight of Nitric acid (HNO3 ) ?

   A. 63.012 g/mol
   B. 65.012 g/mol
   C. 70.012 g/mol
   D. 81.011 g/mol

   Submitted by: Rashid Mehmood

6. Find the PH of a 0.001 M solution of Nitric acid HNO3?

   A. 2
   B. 3
   C. 4
   D. 5

   Submitted by: Muhammad Ali Kunbhar

7. Treatment of sucrose with conc. HNO3 gives__________?

   A. Nitrosucrose
   B. Glucose+ fructose
   C. Oxalic acid
   D. Laevulinic acid

   Submitted by: Muhammad Ali Kunbhar

8. The ore CaSO4.H2O has the general name_______________?

   A. Gypsum
   B. Dolomite
   C. Calcite
   D. Plaster of Paris

9. The balanced chemical equation for the reaction which occurs when Be is added to water is____________?

   A. Be+2H2O?Be (OH)2+H2
   B. Be+H2O?Be (OH)2+H2
   C. Be+H2O?[Be (OH)4]+2+H2
   D. no reaction

10. What will be the order of reaction of a reaction whose rate can be expressed as R = K [A] [B] ?

    A. Zero
    B. One
    C. Two
    D. Three