CBSE > Class 07 | CBSE Board | Homework Help

In a reversible physical change, the original form of the matter can be restored. In an irreversible physical change, the original form cannot be restored. Melting ice and grinding wood into sawdust are examples of physical changes.

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What is the probability of getting a tail in thrown of a dice

Posted by Vaishnavi Deshnur 5 years, 5 months ago

CBSE > Class 07 > Mathematics

2 answers

Sri Sasvika Sri Sasvika 5 years, 5 months ago

1/2is answer

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Harsharan Kaur 5 years, 5 months ago

1/2

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To identify acid base and neutral. Three liquids are given to you, one is hydrochloric acid, another is sodium hydroxide and third is a sugar solution. How will you identify them? You have only litmus paper.

Posted by Anjali Roy 5 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Manas Bisay 5 years, 5 months ago

What would you like to ask? CHEMISTRY Three liquids are given to you. One is hydrochloric acid, another is sodium hydroxide and the third is a sugar solution. How will you identify them. You have only turmeric paper indicator. Share Study later ANSWER Turmeric solution turns red in contact with bases and is not affected by acids and neutral substances. Put one drop of each liquid as the turmeric paper. The liquid whose drop turns the paper red is solution hydroxide (base). Now, this red turmeric paper may be used to identify which one of the remaining two liquids is hydrochloric acid. Put one drop of each of these remaining liquid on the red turmeric paper. The liquid whose drop will turn this red paper yellow is hydrochloric acid. This colour changes from red to yellow because hydrochloric acid neutralizes the pH effect of sodium hydroxide on turmeric paper. There is no effect on turmeric solution by sugar solution.

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Which statement is correct? 1 point (a)Acids turn blue litmus red. (b)Bases turn red litmus blue. (c)Water changes the colour of a litmus. (d)Both (A) and (B

Posted by Sakib Ahmed 5 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Gaurav Seth 5 years, 5 months ago

D. Both a and b

other differences

Acids	Bases
1. Its taste is sour.	Its taste is bitter.
2. It turns blue litmus paper to red.	It turns red litmus paper to blue.
3. It contains hydrogen ion (H⁺).	It contains hydroxyl ion(OH^-)
4. It doesn’t feel soapy to touch.	It feels soapy to touch.
5. Examples: Curd, lemon juice and Vinegar.	Examples: Baking soda, Soap and lime water.

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He his lessons regularly

Posted by Tanu Maurya 5 years, 5 months ago

CBSE > Class 07 > English

3 answers

Ishaan Srivastava 5 years, 5 months ago

けしぬ

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Ishaan Srivastava 5 years, 5 months ago

Hai

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Sunil Kumar 5 years, 5 months ago

Haujekdhnwizhw

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MUTOASU

Posted by Estuti Singh 5 years, 5 months ago

CBSE > Class 07 > Computer

0 answers

ANSWER

Opposite of common

Posted by Tanu Maurya 5 years, 5 months ago

CBSE > Class 07 > English

4 answers

Navroopdeep Kaur 5 years, 5 months ago

Unusual or rare

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Bhumika Mishra 5 years, 5 months ago

Rare

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Ishaan Srivastava 5 years, 5 months ago

Different

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Manas Bisay 5 years, 5 months ago

unusual, or rare

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7.Choose the odd one from the following options : 1 point (a) A thick layer of fat under the skin (b) White fur (c) Long grasping tail (d) Wide and large feet with sharp claws

Posted by Sakib Ahmed 5 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Gaurav Seth 5 years, 5 months ago

Choose the odd one from the following options :

(a) A thick layer of fat under the skin

(b) White fur

(c) Long grasping tail

(d) Wide and large feet with sharp claws

Soln:

The answer is (c) Long grasping tail

Explanation:

The long grasping tail is the adaptation found in animals of the tropical region whereas others option gives adaptations of animals of the polar region.

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Rani is guilty of eating the entire cake- tell kind of verb.

Posted by Divam Kant 5 years, 5 months ago

CBSE > Class 07 > English

4 answers

Ishaan Srivastava 5 years, 5 months ago

Eating

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Sunil Kumar 5 years, 5 months ago

Thanks

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Tanu Maurya 5 years, 5 months ago

Eating

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Gaurav Seth 5 years, 5 months ago

Eating

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Recipients list is saved in My Data Sources Folder. ( True or False )

Posted by Bornil Borgohain 5 years, 5 months ago

CBSE > Class 07 > Computer

1 answers

Gautam Sah 5 years, 5 months ago

Title bar show option for

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Where are the quizzes here??

Posted by Reea Kashyap 5 years, 5 months ago

CBSE > Class 07 > Sanskrit

0 answers

ANSWER

????

Posted by Student Pandey 5 years, 5 months ago

CBSE > Class 07 > Science

2 answers

Student Pandey 5 years, 5 months ago

Hello

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Anjali Rana 5 years, 5 months ago

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Where I find CBSE sanskrit syllabus like NCERT Solution , videos , Online test , Sample paper

Posted by Student Pandey 5 years, 5 months ago

CBSE > Class 07 > Sanskrit

1 answers

Sumit Patel 5 years, 5 months ago

Meritnation

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What is rain?

Posted by Palak J 5 years, 5 months ago

CBSE > Class 07 > Social Science

2 answers

Manas Bisay 5 years, 5 months ago

Rain is liquid precipitation: water falling from the sky. Raindrops fall to Earth when clouds become saturated, or filled, with water droplets. Millions of water droplets bump into each other as they gather in a cloud. When a small water droplet bumps into a bigger one, it condenses, or combines, with the larger one

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Yogita Ingle 5 years, 5 months ago

Precipitation that comes down to the earth in the liquid form is called rain. Most of the ground water comes from rain. Plants help in preserving water. A rain gauge measures the amount of rainfall.

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In addition and subtraction of two integers , sign of the answer depends upon (a) Smaller number (b) Their difference (c) Their sum (d) Greater numerical val

Posted by Ankita Nayak 5 years, 5 months ago

CBSE > Class 07 > Mathematics

3 answers

Ankita Nayak 5 years, 5 months ago

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Sri Sasvika Sri Sasvika 5 years, 5 months ago

Their sum

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Jay And Jiya Patel 5 years, 5 months ago

1Thank You

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2+2+5+3

Posted by Pinku Chauhan 5 years, 5 months ago

CBSE > Class 07 > Mathematics

5 answers

Jay And Jiya Patel 5 years, 5 months ago

0Thank You

Anjali Rana 5 years, 5 months ago

12- hope it help you

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Abhinav Kumar 5 years, 5 months ago

12is correct answer

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Anjali Rana 5 years, 5 months ago

2Thank You

Neet Kirar 5 years, 5 months ago

2Thank You

ANSWER

Differenciate between physical change and reversible change

Posted by Sanjana Manish Pardeshi 5 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Smith Nayak 5 years, 5 months ago

Hi, A reversible change is the one in which a substance that is undergoing the change can be recovered in its original form while physical changes usually involve changes in these properties of a substance.

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CPU kisne banaya tha

Posted by Pranay Kumar 5 years, 5 months ago

CBSE > Class 07 > Computer

1 answers

Tanu Maurya 5 years, 5 months ago

Fedrico Feggin

1Thank You

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Please Give Sanskrit Chapter

Posted by Ravi Tiwari 5 years, 5 months ago

CBSE > Class 07 > Sanskrit

0 answers

ANSWER

Apni priha adhapika ka varnan kartha huaa mother ko patthar blikhiya

Posted by Lakshika Khatri 5 years, 5 months ago

CBSE > Class 07 > हिंदी

0 answers

ANSWER

Bhartiya veeragadna

Posted by Sudhir Bevinkatti 5 years, 5 months ago

CBSE > Class 07 > Sanskrit

0 answers

ANSWER

What is Precipitation?????????

Posted by Palak J 5 years, 5 months ago

CBSE > Class 07 > Social Science

2 answers

Lakshmi Rp 5 years, 5 months ago

Precipitation are manges

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Abhinav Singh 5 years, 5 months ago

n meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravity from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail.

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How the low tides are formed???

Posted by Palak J 5 years, 5 months ago

CBSE > Class 07 > Social Science

1 answers

Manas Bisay 5 years, 5 months ago

low tides are caused by the Moon. The Moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the Moon and the side farthest from the Moon.

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prithviraj chauhan and muhamed ghori clashed twice at this place

Posted by Thaarunika Milo 5 years, 5 months ago

CBSE > Class 07 > Social Science

1 answers

Harsharan Kaur 5 years, 5 months ago

In tarain

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What do you mean by end product

Posted by Sumera Anjum 5 years, 5 months ago

CBSE > Class 07 > Science

3 answers

Sumera Anjum 5 years, 5 months ago

Can u give one more example of it please {End product}

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Sumera Anjum 5 years, 5 months ago

Thank u

1Thank You

Gaurav Seth 5 years, 5 months ago

the final result of an activity or process

Example:

Food is broken down in the presence of oxygen. Food is broken down in the absence of oxygen. The end products are water, carbon dioxide and energy. The end products are alcohol, carbon dioxide and energy.

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Can there be any change in the physical state of reactants in a chemical change?

Posted by Kritika Razdan 5 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Manas Bisay 5 years, 5 months ago

A physical change, such as a state change or dissolving, does not create a new substance, but a chemical change does. In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... No new atoms are created, and no atoms are destroyed.

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