B SHORT-ANSWER QUESTIONS : Answer in 10-15 words
1. Write two characteristics of bases.
2. Name two synthetic acid-base indicators.
3. What is meant by neutralisation reaction? Give one example.
4. What are antacids ?
5. How is the basic soil treated ?
Answers
Answer:
1) their ph is greater than 7. Bitter in taste. slippery in feel.Turns red litmus blue
2) phenophthalein and methyl orange are examples of two synthetic or man made acid base indicators.
3) neutralization is reaction of acid with base to form salt and water
EG: NaOH + HCl gives rise to NaCl and H2O
4) antacids are medicines which neutralize acid in stomach.They contain ingredients like sodium, potassium, calcium, aluminium etc
5) basic soil is treated by adding acidic substances to it. this helps neutralize the soil.
Answer:
1. Have OH- Ions; Bitter in taste ; red litmus turns into blue
2. Phenolphthalein and Methyl orange.
3. Acid and base together.
4.It neutralize stomach acid to cut down sour,stomach acid...etc...It also contain simethicone to get rid of gas.
5. If your soil is alkaline then you can lower the pH value or make it more acidic by using several product.
Thank you