Question

Bosco School Baijal Bari PALU September - 2020
Subject: Science
Class:X .....Time: 2 hrs Max Marks: 5
Sec - A[ 1x 6 = 6]
1. Electrical resistivity of a given metallic wire depends upon
a) Its length b) Its thickness, cits shape d) Nature of material,
2. Identify the basic salt from the following salts
a) Na Coz, b) NHach, c) NaNo3. d) Kel
3. The oxygen liberated during photosynthesis by green plants comes from:
a) Glucose, b) water c) carbon dioxide d) chlorophyll
4. The first enzyme to mix with food in the digestive tract is:
a) Pepsin b) cellulose, c) amylase, d) trypsin.
5. A solution turns blue litmus red. Its pH is likely to be:
a) 7 b) 5, c) 8. d) 14
6. Device used for measuring electric current is:
a) Voltmeter, b) galvanometer, c) ammter, d) odometer​

Answer 1

Answer:

I think

1) a

2)c

3) d

4) b

5) b

6) d