No. Ross and Chandler never kiss in the 'Friends' series.
He didn't tell to Ross. Ross see Chandler and Monica from the window in his new apartment
Not in the actual series but because they are brother and sister they lived together at their family home as shown in several flashback episodes.
Season 10 Episode 11, The One Where the Stripper Cries. Ross and Chandler go to their college reunion and reveal that Ross kissed a girl who Chandler liked. In this flashback, Chandler wanted to seek revenge so he kissed Rachel, who was visiting with Monica at a party. After Rachel passed out, Chandler put her on his bed. However Ross said it was the first time he kissed Rachel, who was on his bed. But as it turns out, Monica was passed out on Ross's bed and thus Ross's first kiss with Rachel, was with Monica. The latter did not occur on screen, it was told through conversation between Ross, Chandler and Monica.
Season 7, Episode 23, The One with Chandler and Monica's Wedding. Ross has the "older brother" chat with Chandler and threatens to beat him up if Chandler makes Monica unhappy.
college
He didn't tell to Ross. Ross see Chandler and Monica from the window in his new apartment
Not in the actual series but because they are brother and sister they lived together at their family home as shown in several flashback episodes.
Season 10 Episode 11, The One Where the Stripper Cries. Ross and Chandler go to their college reunion and reveal that Ross kissed a girl who Chandler liked. In this flashback, Chandler wanted to seek revenge so he kissed Rachel, who was visiting with Monica at a party. After Rachel passed out, Chandler put her on his bed. However Ross said it was the first time he kissed Rachel, who was on his bed. But as it turns out, Monica was passed out on Ross's bed and thus Ross's first kiss with Rachel, was with Monica. The latter did not occur on screen, it was told through conversation between Ross, Chandler and Monica.
Season 7, Episode 23, The One with Chandler and Monica's Wedding. Ross has the "older brother" chat with Chandler and threatens to beat him up if Chandler makes Monica unhappy.
college
Hootie and the Blowfish.
They post information on their alumni website in Season 9, Episode 17, The One with the Memorial Service. Ross and Chandler post jabs at each other, such as Ross sleeps with dinosaurs, Chandler is gay and eventually Ross is dead. They hold a fake memorial service in his honor because no one posted a reply about Ross's death. Two people come, one visits to see Chandler and woman visits, stating she had a crush on Ross. Ross is hiding in the other room and reveals that he is not dead. The woman storms out, and Ross is elated that she had a crush on him.
It was at Ross' wedding with Emily and Monica was upset because someone thought she was Ross' mother. She went to Chandler and Joey's room for meaningless sex with Joey but he wasn't there, so she settled for Chandler.
Ross. Ross.
Ellen Pompeo
Well, Joey kissed Chandler and Chandler is played by Matthew Perry
They were building a book case in Ross's new apartment after Carol had left him.