Which of the following statements about the given reaction are correct?
1. Iron metal is getting oxidized
2. Water is getting reduced
3. Water is acting as reducing agent
4. Water is acting as oxidizing agent
CRT 1 (CBSE 10th)
10th Grade
•25 Qs
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CRT 1 (CBSE 10th)
Quiz
•
Mathematics, Science
•
10th Grade
•
Hard
raushan mishra
Used 14+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1, 2 and 3
3 and 4
1, 2 and 4
2 and 4
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following are exothermic processes?
1. Reaction of water with quick lime
2. Dilution of an acid
3. Evaporation of water
4. Sublimation of camphor (crystals)
1 and 2
2 and 3
1 and 4
3 and 4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which among the following is (are) double displacement reaction(s)?
(i) and (iv)
(ii)
(i) and (ii)
(iii) and (iv)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is
1 : 1
2 : 1
4 : 1
1 : 2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of lead nitrate?
Lead sulphate (insoluble)
Lead acetate
Ammonium nitrate
Potassium sulphate
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which among the following changes are exothermic or endothermic in nature?
Decomposition of ferrous sulphate
Dilution of sulphuric acid
Dissolution of sodium hydroxide in water
Dissolution of ammonium chloride in water
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Which among the following are physical changes?
(multi correct question)
Evaporation of petrol
Burning of Liquefied Petroleum Gas (LPG)
Heating of an iron rod to red hot
Curdling of milk
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