Baking Soda and Vinegar reaction

What is the chemical name of baking soda

• Calcium hydroxide

• sodium hydroxide

• sodium bicarbonate

• sodium carbonate

Vinegar contains

• Citric acid

• Acetic acid

• Oxalic acid

• None of the above

Which of the following is the chemical word equation for the reaction between Vinegar and Baking soda?

• Vinegar+Baking Soda+Calcium Carbonate------> Water

• Vinegar+Baking Soda------> Water + Carbondioxide + Sodium acetate

• Vinegar+Baking Soda--------------> Calcuim Carbonate

When carbondioxide is passed through lime water, ________ is formed which makes lime water milky.

• Calcium Hydroxide

• Calcium Carbonate

• Sodium Bicarbonate

• Sodium Acetate

when we add iron to copper sulphate solution, the colour of the solution changes from blue to __________

• Green

• Red

• Colourless

• No colour change

Name the new substance formed when iron reacts with copper sulphate solution.

• Iron Sulphate

• Iron Oxide

• Zinc Sulphate

• No new substance is formed

A displacement reaction will occur when...

• a more reactive metal displaces a less reactive metal from its compound.

• A less reactive metal displaces a more reactive metal from its compound

• Displacement only occurs when two of the same metals are reacted

• None of the above

The process of formation of solid crystals by precipitating it out from a saturated solution is called as______________

• Displacement

• Crystallization

• Rusting

• Evaporation

The process of depositing a layer of zinc on iron is called ___________

• Displacement

• Crystallization

• Galvanization

• Rusting

A chemical change may involve

• Evolution of gas

• Change in temperature

• Change in colour

• All of the above