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Answer The Following Questions. 3 2 6M

This document contains a chemistry test for 7th grade students with questions in 3 sections. [Section 1] asks students to answer 3 questions about indicators, the law of conservation of mass, and the difference between mass and weight. [Section 2] asks students to answer 2 questions about the differences between acids and bases and how matter can divide at the microscopic level. [Section 3] contains 8 fill-in-the-blank questions about milk containing lactic acid, antacids being basic in nature, neutralization reactions, litmus being obtained from plants, solids having definite shape and volume, mass spectrometry determining atomic mass, the number of significant figures in 504, and distilled water being neutral.

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51 views2 pages

Answer The Following Questions. 3 2 6M

This document contains a chemistry test for 7th grade students with questions in 3 sections. [Section 1] asks students to answer 3 questions about indicators, the law of conservation of mass, and the difference between mass and weight. [Section 2] asks students to answer 2 questions about the differences between acids and bases and how matter can divide at the microscopic level. [Section 3] contains 8 fill-in-the-blank questions about milk containing lactic acid, antacids being basic in nature, neutralization reactions, litmus being obtained from plants, solids having definite shape and volume, mass spectrometry determining atomic mass, the number of significant figures in 504, and distilled water being neutral.

Uploaded by

Nagaraju Lanka
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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BRILLIANT GRAMMAR HIGH SCHOOL

DILSHUK NAGAR
TEST-2
MARKS:20. CLASS:7 th.
SUBJECT: CHEMISTRY. TIME:1hr
TOPICS:ACIDS ,BASES AND SALTS
AND
BASICS OF CHEMISTRY
SECTION -1
I. Answer the following questions. 3*2=6M
1.What is an indicator? Give two examples for natural
indicators.
2.What is law of conservation of mass? Who proposed law of
conservation of mass.
3.State the differences between mass and weight.
II. Answer the following questions. 2*3=6M
4.Write the differences between acid and base.
5How matter can divide macroscopic level?

III. SECTION –2
Fill in the blanks. 8*1=8M
6.Milk contains ________acid.
7.Antacid tablet is ______in nature.
8.When acid reacts with base a neutral substance is formed
.This reaction is called _______ reaction.
9.Litmus is obtained from _____
10.________ state of matter have definite shape and volume.
11.Nowadays ________technique is used to determine the
atomic mass of atom.
12. The number 504 have ______number of significant figures.
13.Distllled water is ________ in nature.

******”””””””'’’’’’’’*****””””””*****”***

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