SSC (English Medium) 10th Standard - Maharashtra State Board Question Bank Solutions for Science and Technology 1

The reaction of iron nail with copper sulphate solution is ______ reaction.

Observe the following diagram and choose the correct alternative:

Write down what you understood from the following chemical reaction.

AgNO_3(aq) + NaCI_(aq) → AgCI ↓ + NaNO_3(aq)

Explain the types of reaction with reference to oxygen and hydrogen. Illustratre with examples.

Write the answer to the following.

Explain the similarity in two events, namely adding NaOH to water and adding CaO to water.

Choose the correct alternative and rewrite the following sentence.

Which of the following is not required to find the pH of a given solution? 

The chemical reactions in which heat is liberated are called endothermic reactions.

A _____________ mirror is used by a dentist.

Grills of doors and windows are always painted before they are used.

(b) State whether the following statements are true or false:

(i) Magnetic poles exist in pairs.

(ii) Global warming is a desirable aspect of the intensified greenhouse effect.

(c) Considering the relationship in the first pair, complete the second paie :
AgCI : White :: CuI2 : ___________

(b) State whether the following statements are true or false:

(i) Magnetic poles exist in pairs.

(ii) Global warming is a desirable aspect of the intensified greenhouse effect.

Considering the relationship in the first pair, complete the second paie :

AgCI : White :: CuI₂ : ___________

Define: Endothermic reaction 

In which equipment/s do you find ___________________

Answer the following question:
How do acids and bases react with each other? What is the name of the process? What product is obtained from these reactions?

Answer the following question:
State the effect on the magnetic needle in Oersted’s experiment when:  
(a) the current is passed through the wire.  
(b) the current through the wire is increased
(c) the current through the wire is reversed.